#help-39

1 messages · Page 265 of 1

midnight haven
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so. Apent = 135.471

compact ridge
midnight haven
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oh

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shi

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uh im not too sure where ive gone wrong tbf

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ok i went back and got radius, i got 110.11..

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so i didnt do r^2 right

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thats wat it was

compact ridge
midnight haven
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awesome

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so now

compact ridge
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okay, now rearrange for pi (small radius)^2

midnight haven
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so i have 110.11 - 1/2 * pi *r^2 = pi(smallr)^2

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what do i use for r on LHS?

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4/sin32?

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nope that gave me 20.6...

compact ridge
midnight haven
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o yea

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lol ty

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i got -52.133...

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nvm wrong ans used

compact ridge
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if you do everything right, you should get the bottom value as the radius of the smaller circle

midnight haven
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kk ill try retype into calc

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asdaluhdasd somethings going wrong

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i have r^2 to be 46.31...

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so 1/2 * pi * ans should equal area of OED

compact ridge
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,w (4/sin(36 deg))^2

midnight haven
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so now

compact ridge
midnight haven
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how did i get 110..

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i cant remember..

compact ridge
midnight haven
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ohh kk

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,w 5 * 1/2 * pi * (4/sin(36 deg))^2 * sin(72 deg)

midnight haven
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..

compact ridge
midnight haven
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oh shit yeah

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,w 5 * 1/2 * (4/sin(36 deg))^2 * sin(72 deg)

midnight haven
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ok cool so

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now

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,w sqrt((5 * 1/2 * (4/sin(36 deg))^2 * sin(72 deg)) - (1/2 * pi * (4/sin(36 deg)^2)/pi)

midnight haven
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ok so thats not it

compact ridge
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no

midnight haven
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the pi in wrong place

compact ridge
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110.11 - 1/2 * pi *r^2 first

midnight haven
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,w sqrt(((5 * 1/2 * (4/sin(36 deg))^2 * sin(72 deg)) - (1/2 * pi * (4/sin(36 deg)^2))/pi)

compact ridge
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yeah so you need to divide that entire thing by pi

midnight haven
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ilke to use for next stage

compact ridge
midnight haven
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kk

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,w 5 * 1/2 * (4/sin(36 deg))^2 * sin(72 deg) - (1/2 * pi * 4/sin(36 deg)^2)

midnight haven
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,w (5 * 1/2 * (4/sin(36 deg))^2 * sin(72 deg) )- (1/2 * pi * (4/sin(36 deg))^2)

compact ridge
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okay now that's better

midnight haven
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trial and error lol

compact ridge
midnight haven
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oh AWESOME

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thank you so much bro

compact ridge
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no worries!

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.close

pearl pondBOT
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pearl pondBOT
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fathom plank
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how would you go about calculating the chances of two populations being from the same distribution?

fathom plank
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this isnt for homework, just something im curious about

pearl pondBOT
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@fathom plank Has your question been resolved?

floral canyon
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Maybe ask that in the discussion channel since it isn't a specific problem?

autumn fossil
tender egret
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Two samples* I think u mean

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The distribution = the population

pearl pondBOT
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kindred vine
#

My solution for 2) is different from the official one. I tried it by writing:
((A->B) AND (B->C) AND not(A->C) | (A->B) AND (B->C) |= (A->C)
<=> (A->C) AND not(A->C)
And this is unsatisfiable and hence not a tautology.
is this a valid proof or is it informal to just rewrite (A->B) AND (B->C) to A->C ?

pearl pondBOT
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@kindred vine Has your question been resolved?

kindred vine
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<@&286206848099549185>

sly garden
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lemme give this a lookover

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i think it works but you need to spell out the logic behind $(A \rightarrow B) \land (B \rightarrow C) \therefore (A \rightarrow B)$

jolly parrotBOT
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Mirror

sly garden
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in effect you're doing the same logical steps, but you need to spell out why the propositions are logically equivalent

kindred vine
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ah ok thank you

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.close

pearl pondBOT
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spring nebula
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Need help with finding asymptotes

pearl pondBOT
spring nebula
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I need to find and sketch all asymptotes of this function

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And i don't know how to start 🙁

spare lark
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Which one you want to do first, horizontal, vertical or slant

spring nebula
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The horizontal

spare lark
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Ok how do you know the horizontal asymptote?

spring nebula
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No :/

spare lark
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horizontal is y = a when lim x -> +inf f(x) = a

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Symetricaly for -inf

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Is there any horizontal asymptote here ?

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if yes what are the equations of horizontal asymptote

spring nebula
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I kinda don't know because we haven't even started learning about limits and asymptotes and my professor just put this on my seminar work

chrome plank
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it doesn't have a horizontal asymtote.
it has a vertical, and a slanted

spring nebula
chrome plank
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Do polynomial long division, and you get the following where $Q$ and $R$ are respectively the quotient and remainder.
$$f(x) = \frac{A(x)}{B(x)} = Q(x) + \frac{R(x)}{B(x)}$$
As $x \rightarrow \infty$ we see $f(x)$ looks like $Q(x)$ because $R(x) / B(x)$ goes to zero.

jolly parrotBOT
chrome plank
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So Q describes the slanted asymtote, and B describes the vertical asymtote.

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Hopefully I've not given too much away

spring nebula
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I kinda don't understand sorry 😄

chrome plank
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Or you can plot it and visually see the asymptote is slanted.

spring nebula
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So a function can only have one type of asymptote?

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It can only be horizontal, vertical or slanted?

chrome plank
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The asymtotes can be veertical, horizontal, or slanted. And functions can have multiple asymtotes of different types

chrome plank
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For example, your function has two asymtotes - one vertical, and one slanted

spring nebula
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Ohh so this one doesn't have a horizontal but only vertical and slanted?

chrome plank
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For example, have a look at this one. This function has a vertical and a horizontal asymtote.

spring nebula
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Oh right

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So this one only has a vertical and slanted?

chrome plank
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This function has two vertical asymtotes, and one horizontal

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Do you know what an asymtote means?

spring nebula
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Not really

chrome plank
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It means "which straight line does the function look like as x or y becomes very large"

spring nebula
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It's like a form of visualization?

chrome plank
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So take y = (x+1)/(x-2) for example. As x -> 2 we see the denominator goes to zero so the entire function becomes very large. That means there's an asymtote at x = 2.

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Which means, "as we let y become very large, the function looks like x = 2"

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But with your example, the numerator is a polynomial of a larger degree, so we can reveal another asymtote using long division.

spring nebula
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So how would you depict that it has no horizontal asymptote?

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I need to write it for my assignment and I don't really know how to

chrome plank
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Take this function as another example. I would say "the function has a vertical asymtote at x=2 and a slanted asymtote at y=x-2"

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We do long division to get $$\frac{x^2-3}{x+2} = (x-2) + \frac{1}{x+2}$$ Now when $x \rightarrow \infty$, we see the fraction go to zero which gives us the slanted asymtote $y = x - 2$ (the quotient), and when $x \rightarrow -2$ we see the entire function go to $\infty$ giving the vertical asymtote $x = -2$.

jolly parrotBOT
spring nebula
chrome plank
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That's for my example. I can't do your particular problem for you (rules of the server XD)

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It's all about looking for when either x or y go very large

spring nebula
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Oh right sorry

chrome plank
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Let me know if you want more help on your example 🙂

spring nebula
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I think it's fine like this thank you 🙂

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I don't really understand how to do it but I'll try it somehow

chrome plank
pearl pondBOT
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@spring nebula Has your question been resolved?

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blazing quartz
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hi

pearl pondBOT
blazing quartz
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i need help finishing 8

strange fox
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this is a similar triangles thing

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wow i am procrastinating a lot

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anyways the big triangle is just height 24 and base w + l

blazing quartz
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yes

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wait dont give me answer

strange fox
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small is the height of 6 with base just l

blazing quartz
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i really wanna try and fiuge out the process

strange fox
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and you just gotta keep in mind they are similar

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so what do you know about similar triangles now that you have the height and base of each the big and small triangle

blazing quartz
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4

strange fox
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lol what

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where did you get the 18 from

blazing quartz
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this thingy

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lemme do that rq

strange fox
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i feel like you might be overcomplicating this

blazing quartz
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im going in circles

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I don't understand

strange fox
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lets step back for a second

blazing quartz
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sure

strange fox
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first things first

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you define what you know

blazing quartz
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yes

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done

strange fox
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w = the distance from the lamp to the woman (aka how far she has walked)

blazing quartz
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dw/dt = 4 ft/sec

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yes

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24 height of lamp

strange fox
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and l = the length of the shadow

blazing quartz
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l = length of shadow

strange fox
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our goal is to look for dl/dt

blazing quartz
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(w + l) ^2 + 24^2 = c^2

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yes

strange fox
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there will be 2 triangles

blazing quartz
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yes

strange fox
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1 larger one and a smaller one within that larger triangle

blazing quartz
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yes

strange fox
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meaning they are similar

blazing quartz
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yes

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4l = w

strange fox
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the larger one will have a height of 24 and the base will be the total distance which is w + l

blazing quartz
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yes

strange fox
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the smaller triangle has a height of 6 and only has the length of the shadow which is l

blazing quartz
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yes

strange fox
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we know that the ratio between the height and the base of a right triangle for similar triangles is the same

blazing quartz
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yes

strange fox
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therefore we can setup the equation:
big height / big base = small height / small base

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we know big height is 24

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we know small height is 6

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we know big base is w + l

blazing quartz
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24/w + l = 6/l

strange fox
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we know small is l

blazing quartz
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oh

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yes

strange fox
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simple cross multiplication gets us 24l = 6(w + l)

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then we just simplify

blazing quartz
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can you do

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24/ w + l = 24/4l

strange fox
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?

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oh

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well yeah

blazing quartz
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wait

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that doesn't matter

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simplif y yes

strange fox
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well it just becomes:

24 / (w + l) = 24 / 4l

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so it simplifies a lot faster\

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cause you got 24 on the top and bottom

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so denominators must be equal

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so w + l = 4l

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then just isolate w

blazing quartz
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(4 * 6 ) / 18 = dl/dt

strange fox
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well technically both

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correct

blazing quartz
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4/3

strange fox
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yes

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4/3 ft/s

blazing quartz
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bruh what

strange fox
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what?

blazing quartz
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that was simple

strange fox
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yes

blazing quartz
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im confused what i did wrong originally

strange fox
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honestly im not sure what you were doing

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the best process to these types of problems is to methodically go step by step

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list out what is known

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what is constant

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and what is the goal

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then use what you know to setup some sort of relationship/equation

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and simplify and solve

blazing quartz
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i think the similar thing messed me up

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i haven't done geometry in 4 years

strange fox
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usually when they give you something weird they want you to use a property of that thing

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like with similar triangles in this case it is known that the ratio between the height and base for both are the same

blazing quartz
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wait what else do i need to know abt similar triangles

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so i can solve other ones

strange fox
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well thats kind of missing the point

blazing quartz
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wdym

strange fox
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you just gotta use properties that are well known from different areas to apply to whatever the problem is seemingly asking

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plus i dont think there is anything else with similar triangles

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for ap calc

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the most common ones are similar triangles exactly like how this one was, filling up or letting out liquid from a specific shape of a container, and pythag is used a lot

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all of them use basic stuff usually like what is the equation for the volume of a sphere or something

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and you just gotta use that to relate things, derive, and solve

pearl pondBOT
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@blazing quartz Has your question been resolved?

pearl pondBOT
#
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Show your work, and if possible, explain where you are stuck.
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random lintel
#

Brooo I’m sorry yall this has me drawing a blank

random lintel
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Idk how I’m supposed to know the dedicate graph without it showing

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I meant derivative

leaden wadi
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Is that a test?

strange fox
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allegedly

strange fox
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a synonym

blazing quartz
random lintel
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Idk does it mean it’s flat

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I don’t know

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I think another way to say derivative is rate of change

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But don’t quote me

strange fox
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well you just asnwered yourself

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rate of change is the same as slope and is the same as derivative

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a slope of 0 just means flat ground as you said

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so where does it look flat / unchanging

random lintel
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In the middle

strange fox
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correct

random lintel
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So at x=0?

strange fox
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correct

random lintel
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What’s the difference from positive and increasing

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Ohhh

strange fox
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positive is above the line y = 0, increasing is going up aka derivative is positive

random lintel
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Wait

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Positive slope right

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Wait

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No

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I think I’m wrong cause idk

strange fox
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youre doing b right?

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it is asking where f prime of x is positive

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aka derivative of f(x)

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what do you know about a positive derivative?

random lintel
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Uhh

strange fox
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(aka positive slope, aka positive rate of change)

random lintel
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It goes upwards

strange fox
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correct

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so the question is asking you exactly that

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at which intervals is the function f(x) going upwards (aka derivative of f(x) is positive)

random lintel
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Wait so is it -6,-3 and -2, 3

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Or is that wrong by

strange fox
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what about the distance between -3 and -2 makes you think that isnt a positive slope>?

random lintel
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Cause there is nothing there

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Gap

strange fox
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between x = -3 and x = -2?

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i seem to see a line

random lintel
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Nuh uh im looking at it right now it’s literally open space

strange fox
random lintel
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Here is proof

strange fox
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i am saying between x = -3 and x = -2

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not between x = -2 and like x = -1.88

random lintel
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Oh

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Idk

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I just saw there is a gap I don’t know

strange fox
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why only stop at x = -3 from -6 instead of going all the way to -2?

vapid imp
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hello

random lintel
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Is it -6,-2 -2,2

vapid imp
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sorry to bother but i kinda have a quick question

strange fox
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first half is correct

strange fox
strange fox
vapid imp
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okk.. can you guys graph sinusoidal functions

strange fox
vapid imp
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with degree not radians

vapid imp
random lintel
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Cause it’s the whole line I think

vapid imp
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i need steps

random lintel
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It goes up at the end

strange fox
strange fox
pearl pondBOT
strange fox
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a function is just a bunch of points, an interval is just defining a starting and ending bounds

random lintel
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K so -6,-2 0,3

strange fox
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correct

random lintel
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Oh

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Is it not the same answer for 3

strange fox
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there is a difference between positive and increasing

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as i said positive is only saying that the function itself has to be above y=0

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and increasing is saying that the DERIVATIVE of that function has to be above y=0

random lintel
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Idek

strange fox
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meaning this C is asking you where the derivative of f'(x) is positive

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we already know that a positive f'(x) is saying that the slope is positive

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a positive f''(x) (which is the 2nd derivative of f(x) aka the derivative of f'(x)) would just mean the slope's slope is positive

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essentially that means the slope is increasing

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so where in the graph do you see a slope that is increasing in value

random lintel
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Bro I thought that was the think we did for B

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It has to be only above 0?

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-4,-2?

strange fox
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B was looking for f'(x) to just be positive

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C is looking for f'(x) to be INCREASING

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B was looking for a slope greater than 0 across f(x)

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C is looking for a slope's slope to be greater than 0 across f(x), essentially asking for a slope that gets greater and greater in magnitude in the positive direction

random lintel
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So f’’?

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What the f

strange fox
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indeed

random lintel
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Bro

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Ok

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So is -4,-2 right

strange fox
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what makes you think that portion has the slope increasing in value along it

random lintel
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Cause it’s above 0

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I am kind of lost with this

strange fox
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f(x) might be above 0

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but we are trying to look for f''(x) to be above 0

random lintel
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Is it -2,0

strange fox
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that is part of it

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alright look at this

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tell me which slope is higher in magnitude

random lintel
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B

strange fox
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correct

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what the second derivative (f''(x)) is saying is we want that to be happening

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where the slope increases

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so lets look at this visually

random lintel
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-5,-3

strange fox
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take each one of these red lines as the derivative (slope) at a point

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what intervals do you see consecutive patterns of A and B where A's slope is less than the slope of B

random lintel
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The left side has a steep slope

strange fox
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intervals, im asking for intervals in which the pattern occurs across

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where the slope gets more and more steep

random lintel
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I said -5,-3

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Super steep

strange fox
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why only -5?

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is there something wrong between -6 and -5?

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and why up to -3?

random lintel
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-6 is not super stew

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Steep

strange fox
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it is not asking if it is super steep or not, it is simply asking if the steepness is increasing

random lintel
#

-6,-3

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-6,-4

barren swift
strange fox
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however there is more

random lintel
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-6,-4 -2,0

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Is 0,3 technically

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Or no

strange fox
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lets look at this visually for a second

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which slope is more positive?

random lintel
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I think a

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Oh wait

strange fox
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ah i just realized i shouldnt have used the word steep

random lintel
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Why not

strange fox
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youll get it

random lintel
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-6,-4 0,3?????????

strange fox
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incorrect

random lintel
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Bro how

strange fox
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what makes you think from A to B the slope isnt increasing?

barren swift
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Sorry to interrupt but one question, is this an issued textbook?

random lintel
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Cause it starts out steep and gets less steep

strange fox
random lintel
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No it’s from my math test

strange fox
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the rule is whichever one is more positive*

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aka increasing in value

barren swift
strange fox
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these are both negative slopes

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lets say at A its -9

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and at B it is -8

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B is more positive than A

random lintel
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Since it’s negative it’s different

strange fox
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yes which is why i shouldnt have said steep

random lintel
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So more flat is more positive?

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For negative

strange fox
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well look at it this way:

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at x = A, y = -9

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at x = B, y = -8

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the rate of change over A,B is -8 - (-9)

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which is -8 + 9

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which is 1

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which is a positive number (over 0)

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this is finding the rate of change of f'(x) (the slopes at points)

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which is f''(x)

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and since it is 1 (which is over 0) the slope increased

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therefore f'(x) is increasing over that interval

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this also applies to positive slopes

barren swift
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Why are you doing it like that and not immediately with the curve

strange fox
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because it is easier to explain that a line is more positive than another line then generalize it

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than just saying oh yeah this is increasing

random lintel
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Is the answer -6,-4 -2,0 0,3

strange fox
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just -2,3

random lintel
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Oh

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That’s weird but ok

strange fox
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well technically since this is drawn and we dont know the function we cant actually be sure

barren swift
strange fox
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but i am assuming at x = 0 is the only instance of f'(x) being 0 near x=0

strange fox
random lintel
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0 is very flat that’s why I think it’s weird

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But I think I understand the increasing slope now

strange fox
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yeah no teachers do this a lot but usually unless it is super flat it doesnt mean just a flat line

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cause they just draw a function since they dont want to come up with a piecewise (multiple functions smushed together into one)

random lintel
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Oh okay

barren swift
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Which question are you guys doing rn?

strange fox
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i can almost assure you that they meant x=0 to be a minimum though

random lintel
#

We finished C

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I think d is -4, -2, 0, and 3 idk though just my first impression

barren swift
strange fox
#

1s

random lintel
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K bruh it’s not that deep my teacher just trying to help boost my grade I think he is a very good teacher

strange fox
#

teachers do it all the time cause laziness and also to give better understanding to students without having them look at a weird piecewise

barren swift
strange fox
random lintel
#

It’s a flat line I think

strange fox
#

This is the definition of differentiable

#

a flat line is a slope of 0

random lintel
#

So u can have a differential of a flat line

strange fox
#

a point having a slope in the first place means it is differentiable

#

since being differentiable just means there is a slope there

random lintel
#

-4 -2 3

strange fox
#

correct

random lintel
#

Okay

#

E is asking for the slope of 4

#

?

strange fox
#

oh also can i see ur intervals real quick

barren swift
random lintel
#

How am I supposed to know

strange fox
#

it says the bounds are strictly greater than -6 and less than 6

random lintel
strange fox
#

so it needs to be a parenthesis instead of brackets

#

you need to do it in interval notation

random lintel
#

I don’t have a eraser on me

#

What

#

Oh like the u

strange fox
strange fox
#

oh whoops

barren swift
strange fox
#

yeah didnt read that part

#

-2 isnt in there then

#

since it isnt part of the function in the first place

barren swift
#

If it had the holes it would be clearer

strange fox
strange fox
random lintel
#

Idk what to put parenthesis

#

I hate the graphs cause chat ai never works 🙄🙄🙄

strange fox
#

well first of all x=-2 isnt part of the solution set for anything since it isnt part of the function f(x) in the first place

#

so you can put a parenthesis on where -2 pops up

barren swift
strange fox
#

however if you want to include the number in the solution then you use a bracket

random lintel
#

How bout b

barren swift
strange fox
#

well the function f(x) is only defined strictly greater than -6 and less than 6

#

which means -6 and 6 are not in the function in the first place

random lintel
#

Yeah I understand it

strange fox
#

so they cant be brackets

#

at x=3

#

we already determined just now that at that point it isnt differentiable

#

therefore we also put a parenthesis on that

#

and at -2 we know that x=-2 isnt in the function f(x) in the first place

#

so it is also a parenthesis

#

so currently what you have is correct it just needs a union

random lintel
#

Oh okay

barren swift
random lintel
#

Do yall. Understand E or no

#

Yall don’t need to overcomplicate it im sure it’s a simple thing like he’s not being tricky

strange fox
barren swift
#

Since

#

E

#

Asks of f'(4)

#

Ah the v.tagnent is at -4

#

Mb

strange fox
#

i mean yeah it could just be leading us towards DNE

#

oh well

#

yeah misreading negatives happens a lot to me too

strange fox
#

take a starting point and an ending point, its a straight line so you just use rise over run

#

aka y2-y1/x2-x1

random lintel
#

Idek what the points r

strange fox
#

well the obvious choice in this case would be (3,2) and (6,0) since those are the start and the end to the straight line from left to right

random lintel
#

Oh shoot ur not wrong

barren swift
strange fox
#

it can be inferred that it approaches 0

random lintel
#

Imma just leave it at that I gotta get rolling on ts

strange fox
#

just like how .9999999 repeating equals 1

barren swift
strange fox
#

im kidding

#

it doesnt really change anything though if we use it in the equation

#

plus its almost definitely the intended method

#

plus we're eyeballing both anyways

barren swift
#

Anyway tho

random lintel
#

F and G I have true and false do yall agree

strange fox
#

acting like this is a masters thesis dawg

barren swift
strange fox
random lintel
#

Bro can u just stop not trying to be mean but it’s getting annoying bruh

#

Yeah

#

It’s true

strange fox
#

what makes you think that

random lintel
#

Bro nevermind

#

Cause f(4) is the biggest one

#

Right

#

Or am I wrong

#

I atleast know f(4) is bigger than f’(4)

strange fox
#

well F is saying that f(4) is the smallest

random lintel
#

Noooo f(4) is not the smallest

strange fox
#

it is saying that f(4) < f''(4) < f'(4)

Which is saying f(4) is less than f''(4) is less than f'(4)

#

you are correct saying that f(4) is the largest

#

but the problem itself is saying otherwise

#

therefore it must be?

random lintel
#

So it is false

strange fox
#

correct

random lintel
#

And g is true then

strange fox
#

incorrect

#

what makes you think that

random lintel
#

Cause putting 2 false in a row is ridiculous

strange fox
#

.-.

#

crazy

#

look at your answer to C

random lintel
#

It’s bigger than 0

strange fox
#

correct

random lintel
#

Does concave mean negative

strange fox
#

concave is a state

#

you are either concave up, concave down, or straight

#

concave up makes a U shape

#

concave down makes an upsidedown U shape

#

however that isnt always the case

#

the formal definition is a function f(x) is concave up if its slope is increasing (meaning f''(x) is positive/f'(x) is increasing)

#

and a function f(x) is concave down if its slope is decreasing (meaning f''(x) is negative/f'(x) is decreasing)

#

and flat just means, well, straight line

#

sorry not flat\

random lintel
#

Brooo I did not think it meant that

strange fox
#

straight line*

random lintel
#

Ok

strange fox
#

anyways for g

#

it is saying that the f''(2) is less than 0

#

that statement is false

#

because as you just said, at x=2 f''(x) is greater than 0

#

so therefore it can not be less than 0

random lintel
#

Yeah i get that

strange fox
#

👍

barren swift
#

False/false right?

random lintel
#

Yeah that’s what I put

strange fox
#

which is correct

random lintel
#

Bro try at took way to long I need to lock the f in

barren swift
barren swift
strange fox
#

i mean

#

.-.

#

oh well

#

i guess we gotta burn the entire paper down and start over yall

barren swift
#

It is a good exercise for basics but very terribly written

strange fox
#

i mean if you look at things that way

#

everything would need to have a citation all the way back to like god or wtv

#

kind of like wikipedia ngl

random lintel
#

Yooo sorry to bother do yall know what concave down is

random lintel
#

Is that like slope or something negative

strange fox
#

concave down is where f''(x) is negative

random lintel
#

Ohh I forgot i asked that

barren swift
random lintel
#

Upside down u

#

Is it a b

#

I swear last thing I need help with

#

A and B I meant

barren swift
#

That

random lintel
#

Bruhh I know what a upside down u look like im not that slow

#

Hating for what reason

barren swift
barren swift
random lintel
#

Alright I’m sorry I’m just messing around

#

I appreciate u a lot

barren swift
#

When a derivable

#

Function is strictly increasing

#

The f'(x) is positive

#

And when strictly decreasing it is negative

#

That's like the first thing that must come to your mind when you hear increase/ decrease

barren swift
#

It asks us when is f(x) is decreasing

#

So basically it asks when is f'(x)

#

Negative

#

So basically when the line is below x'x right?

#

So at which points is it below that?

#

( @strange fox check for mistakes)

random lintel
#

Idk I think it’s just a and b cause they concave looking

random lintel
#

They round like a bowling ball

barren swift
#

Concave has nothing to do with this

#

Wait first let me ask you

#

What are we looking at

#

Which function are we looking at rn

#

Like what's the name of it

random lintel
#

The question is which points concave down

#

I’m confused

barren swift
random lintel
#

Yeah as the answer

barren swift
#

OOOO THE D QUESTION

#

My bad

random lintel
#

Wait so did I get a and b wrong

barren swift
random lintel
#

Oh

barren swift
random lintel
#

Idk it’s not due til tomorrow im just gonna stay up til i finish

#

This the last page w a graph tho so imma just cheat on the other shit

barren swift
random lintel
#

Ok if u want

barren swift
random lintel
#

I don’t care just don’t wanna waste ur time

#

I’m not very good with this shit

#

Stuff I meant my bad

barren swift
random lintel
#

Ok

#

Do this look right

barren swift
#

A and b correct

barren swift
barren swift
random lintel
#

Ok

#

Damn

#

Ok

#

Idk what for c and I guessed on f or g

barren swift
#

F is incorrect

#

G is also incorrect

#

But man hey it's really good

#

So C

#

C is basically asking you when the rate of change ( f'(x) ) is at its highest right?

#

So when is it? ( Of the labeled points ofc)

random lintel
#

Um

#

Idk

#

Is it b or a or d

#

Idk

barren swift
random lintel
#

B

barren swift
#

Now f

random lintel
#

Isn’t a tangent line like always flat

barren swift
random lintel
#

Cause it’s highest up

strange fox
#

Like you know the red lines I drew before

#

Those are called tangent lines

#

Because the lines are tangential to the curve, aka the slope at the points on the function

#

Also I’m back wassup

random lintel
#

Hello

strange fox
random lintel
#

Bro isn’t the tangent line lik rhis

blazing quartz
#

yo bro

strange fox
#

Well yeah that’s a tangent line against point C

blazing quartz
#

i just lifted for an hour, cooked and ate food and we still on

#

no way

#

dedication

#

respect

barren swift
strange fox
#

It is just the line representing the slope at a point thats what a tangent line is

#

It has to be tangent in accordance with something else

barren swift
blazing quartz
#

thecrumbeler has been helping for hella long

#

crazy work

strange fox
barren swift
#

Yea i joined in to help hope i don't mind

random lintel
#

K bro be respectful he is just trying to help out u don’t have to point it out

strange fox
#

My tri-tasking is on another level

#

I got alt tab on LOCK rn

strange fox
random lintel
#

He being nosy bruh like mid ur beeswax it’s a free country on bro

barren swift
#

The f'(x) shows basically the tangent of the angle of f(x)

random lintel
#

Yeah ok

#

Is it like the inverse of something

barren swift
random lintel
#

Is it 0 or dne I forget

strange fox
#

Both technically since he said straight lines

#

DNE is vertical and 0 is flat so horizontal

barren swift
#

By definition ^

strange fox
#

I mean

#

(-90,90) technically

#

Also angles don’t exist in this context it’s just the slope steepness he’s just using angles as an example

random lintel
#

Yall

#

Is the answer -3, 1, 3

barren swift
#

I just realised that slope and angle in my language is the same word

strange fox
#

For wat

barren swift
barren swift
random lintel
#

Ok

strange fox
#

Bro what the hell is that question

#

Asking for x values when they labeled points using the alphabet and the x values aren’t even lined up

#

Am I reading it wrong this doesn’t seem possible on paper and eyeball

random lintel
#

What do u mean?

barren swift
#

There are lines

random lintel
#

Maybe hard to see on photo

#

Not really tho

strange fox
#

Oh wait I’m blind it’s a graph of f’(x) lol

#

Mbmb

#

I take back what I said

barren swift
#

Well now for g

random lintel
#

How is g not right like huh

strange fox
#

Wait you said g was wrong?

#

I’m pretty sure g is correct

barren swift
#

Ah my bad

#

I thought f'(-1) = 8

#

Lighting issues

strange fox
#

Rip

barren swift
#

Well then its all correct:D

random lintel
#

I’m a genie

barren swift
#

Yes, please tell the genius that wrote these exams to go back to high school, some of it inexcusable for a teacher

random lintel
#

Tbf my teacher is fresh out of college

barren swift
random lintel
#

He is only a few years older then us

barren swift
#

Oh well if you have anything more send it if not close this ticket :d

strange fox
#

Impressive

barren swift
#

This was fun cruembeler

strange fox
#

Yur

random lintel
#

This the last question besides inverses and I fuckng hate those so I’m calling it quits

strange fox
#

Inverses aren’t that bad

barren swift
#

Do you know the limit definition

#

Idk how to use the texit bot

strange fox
#

Type in latex

#

Then use dollar signs

#

$h'(t)=\lim_{h\to 0}\frac{h(t+h)-h(t)}{h}$

barren swift
jolly parrotBOT
#

thecrumbeler2

random lintel
strange fox
#

I just use a generator

strange fox
random lintel
strange fox
#

Oh boy

barren swift
strange fox
#

Have you learned power rule yet?

random lintel
#

Yeah that’s why I knew the answer to the other one before I did the limit definition

strange fox
#

Noice

#

These should be easy then

#

Just remember that sqrt is the same as exponent to the 1/2

#

I’m assuming you also know quotient and product rule

random lintel
#

Yes

strange fox
#

Alright ur set then

random lintel
#

I think yeah

strange fox
#

Well also chain rule

#

But I’m assuming you probably understand that if you know product and quotient

random lintel
#

Wait

#

It’s a duplicate page

strange fox
#

Crazy

random lintel
#

I did this a long time ago do u think I did it right I don’t even remember

strange fox
#

uhhh

#

well

#

#1 is wrong

#

the rest are right

random lintel
#

Is it 2/3

strange fox
#

ye

random lintel
#

Ok I see

strange fox
#

you plugged in 2 instead of 4

#

thats it

random lintel
#

I see dat

#

Thanks

strange fox
#

👍

random lintel
#

Have a good night I appreciate u and the other guy

#

Idk how to close this

strange fox
#

type .close

#

gn

random lintel
#

.close

pearl pondBOT
#
Channel closed

Closed by @random lintel

Use .reopen if this was a mistake.

pearl pondBOT
#
Available help channel!

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misty trout
#

Hello I need help explain how to do math equation in chapter 3.5 and 3.6 in intergrated math 1 textbook. Here is a pdf of it. I do not understand how they work and need understanding of how to solve them. You can choose the questions.

pearl pondBOT
#

@misty trout Has your question been resolved?

spiral coyote
misty trout
#

How to write the equation out

rain mulch
# misty trout Hello I need help explain how to do math equation in chapter 3.5 and 3.6 in inte...

3.5 a y-intercept is a point on a function that touches the y-axis. to identify the y-intercept for a linear function, set x = 0
an x-intercept is a point on a function that touches the x-axis, to identify the x-intercept for a linear function, set y = 0

3.6 a transformation is a change in computation in comparison to its parent function. this could be multiplying by a constant, adding a number, etc etc
for whatever is inside f(x) is the variable. for instance, in f(x) = 3x-2, this is what we get when we plug in x. if we plug in x+3 instead, we get f(x+3) = 3(x+3)-2 = 3x + 9 - 2 = 3x+7

misty trout
#

mhm

#

ic

#

can we do 1 problem together

spiral coyote
misty trout
#

in 3.5

misty trout
#

or u asking me

spiral coyote
#

im asking u :]

#

but we could take it frm the start

misty trout
#

mhm from my math teacher say we start with original line

#

which is something

#

and than find the new line

spiral coyote
#

do yk the slope intercept form?

misty trout
spiral coyote
#

y=mx+b

misty trout
spiral coyote
#

what r m and b here?

misty trout
#

mx is slope and b is starting y when x is 0

#

If I'm correct

spiral coyote
#

mx isnt exactly the slope

#

only m

#

x is the variable, like y

misty trout
#

so if y=2x+b

#

for every time it goes right by 1

#

goes up by 2

spiral coyote
#

true

misty trout
#

b is where it start

#

so if b is 4

#

the starting dot is 4,0

spiral coyote
#

its a graph of a straight line

#

so it doesn't really have a start or end

#

a line can be stretched infinitely

misty trout
#

or a infinite line

spiral coyote
#

so b is just where it cuts y axis

#

not really a starting ung point

misty trout
#

mhm ic

#

I'm thinking it's start to click now in my head

spiral coyote
#

If you've understood this form , can we discuss the ques?

spiral coyote
#

Okay so we need the x intercept (a,0)

misty trout
spiral coyote
#

Wait you're also supposed to graph it

misty trout
misty trout
#

And I do not wish to waste your time

spiral coyote
#

Not really

#

It's a diff method than i use, in the picture

misty trout
spiral coyote
misty trout
#

which question do u want to use

spiral coyote
spiral coyote
misty trout
spiral coyote
#

Which one do u want to start with

misty trout
spiral coyote
#

Oh to learn

misty trout
misty trout
# misty trout Oh I forgot to say

Thxs so much for teaching me, I'm gonna have a test tmr and I'm stressing out. You teaching me means a lot to me. So thank you so much. Now back to math

#

question 18 says

#

y = 2x+4

spiral coyote
#

Yes

#

Do we need to rewrite it in anyway?

misty trout
#

cause it's already in the form

spiral coyote
#

Good so, can u compare the general form and this eqn to find m and b?

misty trout
#

So first we need find slope and y-intercept right....

spiral coyote
#

Acc to the method in the pic ,yes

misty trout
#

In y=mx+b m is slope and the y is y-intercept

#

so 2 is slope

#

but doesn't say y intercept?

#

y = 2x+4

spiral coyote
misty trout
#

so y intercept is 4

#

😄

spiral coyote
#

Thats an eqn in x and y , hence they are can take different values

spiral coyote
misty trout
#

Yay, closer to solving it

#

so now we plot it...

#

ok plot, 0,4

spiral coyote
#

So our b is (0,4)

spiral coyote
misty trout
#

Now use slope to point other lines

#

So...

#

2x

spiral coyote
#

2/1 =m

misty trout
#

Every time it goes up 2 goes right 1 I believe or other way around😅

spiral coyote
#

2rise, 1run yes

misty trout
#

and...

#

thats all...

#

WAIT WE'RE DONE?!?

spiral coyote
#

Eh not really

misty trout
#

guess we can't do chapter 3.6 now

#

mhm

#

it ends at step 4

spiral coyote
#

From (0,4) , go 2up and 1 right

#

Plot tht

misty trout
#

hmmm 1,6

#

2,8

#

3,10

#

4,12

#

5,14

spiral coyote
#

Now you've got 2 points ,join em you've got a line

misty trout
#

ok

#

ic

spiral coyote
#

U can confirm using this

misty trout
#

ohhhh desmos

#

i love desmos

spiral coyote
#

Now we've got our graph

misty trout
spiral coyote
#

About x intercept(a,0)

#

We can see y=0

#

We can solve for a ,by substituting in eqn

spiral coyote
misty trout
#

I was making it

#

Here I have it

spiral coyote
#

Oh i thought u already graphed it😅

misty trout
#

I was planing to gragh on paper

#

but than saw desmos

misty trout
#

and panic thinking u already gragh it

#

and it was on desmos

spiral coyote
misty trout
spiral coyote
misty trout
#

well

#

our math teacher doesn't like us use computers

#

and say it's not the games, its technology

#

cause when we don't have it

#

we must relay on paper

spiral coyote
#

I js wanted u to confirm it using desmos yk

misty trout
#

ic

spiral coyote
#

So..did u get the graph?

misty trout
#

yea I get it

#

starts at 0,4

#

goes up 2 for every time it go right by 1

spiral coyote
#

Ehh again it starts nowhere, 4 is js the y intercept

spiral coyote
misty trout
#

it starts no where

#

just y-intercept

spiral coyote
misty trout
misty trout
spiral coyote
misty trout
spiral coyote
misty trout
#

can we do chap 3.6

#

@spiral coyote U there?

spiral coyote
#

I kinda need to go 🫠

misty trout
#

Have a nice life

#

out there

#

😄

spiral coyote
#

Heh not when you have exams going on:')

misty trout
#

Hello everyone I have been taught chapter 3.5 from this wondeful person

#

however I did not be able

#

to learn chap 3.6