help-4

[midnight pier]

which is in the picture you posted

[frozen tree]

ye

[midnight pier]

so that can be re-written as : 4x^2 - 4x^4

[frozen tree]

ye

[midnight pier]

and you replace x^2 with some other var.

[frozen tree]

ye

[midnight pier]

to get 4v - 4v^2

so y^2 = that

[frozen tree]

ye

[midnight pier]

we shift y^2

we get 4v^2 - 4v + y^2 = 0

[frozen tree]

ye

[midnight pier]

that's a quadratic equation

[frozen tree]

but its y^2

[midnight pier]

thik of y^2 as c

[frozen tree]

ohh

right ok

[midnight pier]

do you understand the next step?

[frozen tree]

i think so

[midnight pier]

because y = sin(2t) -> y e [-1,1]

1-y^2 e [0,1]

we have sqrt(1-y^2)

if 1-y^2 e [0,1] the sqrt of that e [0,1]

[frozen tree]

so its between 0 and1?

[midnight pier]

yes

let b = sqrt(1-y^2)

our two values become r^2= (1-b)/2

R^2=(1+b)/2

because of the quadratic

since b is between 0 and 1

1-b is greaterequal 0

and 1+b is greaterequal than 0

both r^2 and R^2 are greaterequal than 0

both are nonnegative and the - root is the smaller one

the inner radius

r^2

so we have the two radiuses now you integrate for 1 -1

pi integral 1 -1

i solved wait so R^2 - r^2 is sqrt(1-y^2)

so V = pi integral range 1 -1 of that

Pi^2 /2

[frozen tree]

um

[midnight pier]

where are you stuck?

[frozen tree]

ok so its between 0 and 1 since 1-y^2 =0, y=0,1
and im stuck on the greaterequal to 0 for r^2 and R^2 and how is it squared if x^2=(1+/-sqrt(1-y^2))/2

and like where did the radius stuff come from TT

[midnight pier]

wait wait

so, we solved that for a fixed height we got x^2 = (1+-sqrt(1-y^2)) /2

this is clear right?

[frozen tree]

ye

[midnight pier]

let's replace the square with b so b = sqrt(1-y^2)

[frozen tree]

yep

[midnight pier]

it's easier for me to write as well

so we have y = sin(2t)

that's between -1 and 1

is that clear?

[frozen tree]

ye

frmo the graph right

[midnight pier]

therefor 1-y^2 is between 0 and 1

is that clear?

[frozen tree]

umm

how does the sin(2t) relate to 1-y^2

[midnight pier]

y = sin(2t) -> y is between -1 and 1

[frozen tree]

yes

oh omg

[midnight pier]

so y^2 is between 0 and 1 from here

[frozen tree]

okok

[midnight pier]

we square

• *- = +

"-" * "-" = +

[frozen tree]

yes

[midnight pier]

y^2 can't be negative

and it's always between 0 and 1 cos y is between -1 and 1

so 1-y^2 will be also between 0 and 1

you can see it directly

if y = +-1 then 1-y^2 = 0

if y = 0 then 1-y^2 = 1

thats the limits

the endpoints

[frozen tree]

yes ok

[midnight pier]

y is between -1 and 1 if you replace y with 1 -1 and 0 you'll see it

that 1-y^2 is between 0 and 1

is this clear so far?

so we get outer and inner radius from here

[frozen tree]

yes

[midnight pier]

max|x| among the intersection points and min|x|

outer radius R^2y = maxx^2

or (1+b)/2

[frozen tree]

ok

[midnight pier]

min is 1-b/2

that's r^2

[frozen tree]

ok

[midnight pier]

washer area is Pi (R^2 - r^2)

volume is integration of that area

for 1 -1

[frozen tree]

uh its u substitution right

..

[midnight pier]

what?

[frozen tree]

like the area

the intergral

[midnight pier]

R^2 - r^2 yeah

the integral is pi integral (range from 1 to -1)

of A

i mean the pi from A goes infront

ok:
A = pi ( (1+b)/2) - (1-b)/2) )

A = pi sqrt(1-y^2)

V = pi integral (from 1 to -1) sqrt(1-y^2) dy

or in other words:
pi and area of semicircile radius 1 which in the end is pi^2/2

where b is from before b = sqrt(1-y^2)

so A = pi b

[frozen tree]

but how do u solve that by hand

integral of sqrt(1-y^2)

[midnight pier]

?

[frozen tree]

ye

[midnight pier]

what is b?

the circle is x^2+y^2 = 1
y=sqrt (1-x^2) -> upper semicircle

x = b right semicircle

y is between -1 and 1

so b is semicircle of radius 1

[frozen tree]

ok

[midnight pier]

the area is Pi/2

[frozen tree]

ok

[midnight pier]

so V is Pi^2/2

let's solve it ok?

maybe it'll be easier

lemme open mspaint

[frozen tree]

ok

no the thing is

this question is part 3 of this booklet we have to do right

and for the other questions

[midnight pier]

calculus

[frozen tree]

ohh

ok

yeye

😭😭i think i got it

tysm

[midnight pier]

ask if you're stuck somewhere

i'll try to explain

[frozen tree]

😭😭 sorry that took so long

[midnight pier]

it's cool

[frozen tree]

i think i got most of it

[midnight pier]

if you're confused about a part ask

[frozen tree]

itrs js the R^2 and r^2 thing... i think i get it but.... so like would it matter if i did r^2-R62

[midnight pier]

yes

r^2 is the smaller radius

the inner

R^2 is the outer

of the figure

the area is outer - inner

[frozen tree]

oh

ok

so take outer from inner

[midnight pier]

pi outer^2 - inner^2

bad drawing

inner and outer radius

pi sqrt(1-y^2)

pi (R^2 - r^2)

see the 1 -1? that's the integral (1 -1)

[frozen tree]

yesyes

tytytyttyy

i think i got it

😭😭😭😭😭😭😭

tysm

[vale dock]

@frozen tree Has your question been resolved?

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[vernal folio]

X - sinx/x + cosx why is this not 1 gang

[vernal folio]

Lim x tends to inf

[wintry oxide]

Sinx/x goes to 0

[tardy orbit]

as x -> inf, the x term -> inf

[wintry oxide]

Cosx is bounded

And X goes to infinity

So it’s infinity

[jovial edge]

$\lim_{x \to \infty} \frac{x-\sin(x)}{x-\cos(x)}$

this ?

[vernal folio]

Yes

[rocky lotus]

Alexis_Fx

[vernal folio]

Just take x from this and it's

(1-sinx/x) / (1- cosx/x)

[tardy orbit]

as x -> inf we can disregard the sin(x) and cos(x)

since their contributions aren't really significant

[vernal folio]

Sinx cosx can only be -1 to 1 so they become 0 when x tends to inf

[vernal folio]

.

[tardy orbit]

also

as x -> inf

sin(x)/x -> 0 and cos(x)/x -> 0

[vernal folio]

[vernal folio]

How

[tardy orbit]

because of the x in the denominators

[jovial edge]

why do you think it's not 1?

[lyric sundial]

Is it this: $x - \frac{\sin x}{x} + \cos x$?

[rocky lotus]

Alberto Z.

[vernal folio]

It's 0

[vernal folio]

Nope

[pine prairie]

put brackets then

[vernal folio]

I forgor the brackets

[jovial edge]

they said it's this one

[lyric sundial]

Well, it's a typo then, very likely. Either a misprint in the answer key or in the question itself

[vernal folio]

Are u extremely sure

[lyric sundial]

Yeah o wanted her to realise but I know it's too much of a request 🙈 🙈

[lyric sundial]

$99.\bar{9} %$

[vernal folio]

Can u really cancel out x it it tends to inf? It's an indeterminate form isn't it? Inf/inf can't be cancelled

[rocky lotus]

Alberto Z.

[pine prairie]

nah you can

they grow at the same rate

[ashen prawn]

never of such a weird fact

[pine prairie]

$\lim_{x\to\infty}\frac{2x}{x} = 2$

[rocky lotus]

frosst

[pine prairie]

$\lim_{x\to\infty}\frac{2x}{x+1} = 2$

[rocky lotus]

frosst

[pine prairie]

$\lim_{x\to\infty}\frac{2x+3}{x+1}=2$

[rocky lotus]

frosst

[pine prairie]

you can really just cancel it

[vernal folio]

(100000000^100000)x and 2^logx grows at the same rate too

[lyric sundial]

Not at all

[vernal folio]

Sorry i changed

[lyric sundial]

Still not

[vernal folio]

They are both polynomial functions

[pallid oasis]

Depends on how you bracket it and what base the log is in

For example (100000^1000000)x and 2^{log_2(x)} grow at the same rate

They are both multiples of x

[vernal folio]

Yea

[pine prairie]

$\lim_{x\to\infty}\frac{x^2}{x^3}=0$

[rocky lotus]

frosst

[lyric sundial]

Huh?? They are a power and a log (or, if you really mean what you've typed, they're a polynomial and a power containing a log)

[pine prairie]

the numerator and denominator don't grow at the same rate

[vernal folio]

Can we cancel inf/inf?

[pine prairie]

i said we can "cancel the inf/inf" but like i was lying

[lyric sundial]

No, of course

[pallid oasis]

You can cancel when the limit is 1 yes

For example lim x-> infty( x/x ) is inf/inf

[vernal folio]

Limit 1?

[pine prairie]

it's true we can cancel but it's not cancelling like a fraction

[vernal folio]

Both of them are polynomial asymptomatically

[lyric sundial]

"inf/inf" is sometimes 0, sometimes inf, sometimes a number

[pallid oasis]

Here you can cancel

[lyric sundial]

(asymptotically)

[vernal folio]

For the question i posted what will be the answer? @pallid oasis

Aq to u

[pallid oasis]

This question?

[vernal folio]

Yea because we only mean growth rate

Yes

[pallid oasis]

1

[vernal folio]

The answer was 0

[pallid oasis]

Ok

[white adder]

but it is

[white adder]

if u mean this

so it is 1

[vernal folio]

Majority said 1 so it must be 1

Thanks y'all

[errant gyro]

is it this, or the one replied to by shiru?

[tardy orbit]

it's that one

[white adder]

theyre the same lol

[tardy orbit]

argumentum ad populum btw

[vernal folio]

What

Idk roman

[pallid oasis]

That's not how it works

[white adder]

"argument from popularity"

or smth

[vernal folio]

Skewed distribution

[pallid oasis]

It seems like you have gotten adequate hints to solve this as well

[errant gyro]

oh oops, i thought you were referring to the one written by alberto, my bad

[vernal folio]

I got 1 as well but the answer was 0

[errant gyro]

did whoever telling you it's 0 also tell you why?

[vernal folio]

No it was the answer key

[errant gyro]

and the answer key has no working provided, i presume

[vernal folio]

No

[tidal swift]

looks like it's off to the teacher

[vale dock]

@vernal folio Has your question been resolved?

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[floral vigil]

can someone please explain this question?? and answer

[floral vigil]

<@&286206848099549185>

[errant gyro]

!15m

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Please only use the <@&286206848099549185> ping once if your question has not been answered for 15 minutes. Please do not ping or DM individual users about your question.

[midnight pier]

Is there any way that we can convert any time series graph into a taylor series function !?

[tidal swift]

!occupied, sorry

[vale dock]

Someone else is already using this help channel. If you need help with a question, please open your own help channel/thread (see #❓how-to-get-help for instructions).

[floral vigil]

tnx

[errant gyro]

well, we know the gradient of a graph is how steep it is at a given point, i presume?

[floral vigil]

yes

[errant gyro]

so if we consider the first part of the graph, from the left side until the turning point there

[floral vigil]

from what i know, derivate is basically gradient of a function, and i think its A because the the function y is going up

[errant gyro]

the graph is going up, sure, but it slowly tapers off towards the turning point. agreed?

[signal meteor]

It has 2 turning points hence we can rule out ABE

[floral vigil]

yes but then it goes back up no?

[errant gyro]

no, it heads down

it heads down towards the second turning point on the right first

then it tapers off again, and heads back up

so at two points the gradient is 0

[signal meteor]

And then just observe the part between two turning points

It starts from flat, decreases and then reach some max decrease and starts increase and becomes flat at the other turning point

[floral vigil]

so if derivative = 0, the points will be a postive number and a negative,

[signal meteor]

If derivative = 0

[errant gyro]

derivative = 0 just means that the gradient is 0

[signal meteor]

The graph would have a turning point

[errant gyro]

meaning at that point, the graph is "horizontal", if just for a bit

[signal meteor]

Right

[errant gyro]

this happens at turning points

because for a graph to turn, it has to first be horizontal for a little bit

[floral vigil]

so the answer is e?

[signal meteor]

Nope

[errant gyro]

e has been ruled out already

[signal meteor]

We have two turning points in the graph

[errant gyro]

it can't be e because we have two turning points, so we need the gradient function to cross zero twice

[signal meteor]

Hence the derivative gotta cross y=0 twice

Therefore we can rule out ABE

[floral vigil]

oh

has to be d right?

[errant gyro]

explain

[floral vigil]

it crosses x axis twice

[errant gyro]

you're right that it has to be either C or D, but explain your choice

C does too!

[signal meteor]

But C also crosses twice

[floral vigil]

the graph is negative?

[errant gyro]

what graph is negative?

[floral vigil]

function x

the slope is negative

[signal meteor]

At which part?

[errant gyro]

you've got to clarify this one

[floral vigil]

from max to min

[signal meteor]

Not quite

[errant gyro]

so you're saying that between the two turning points, the slope is negative, therefore it's D?

you're correct in saying that the slope is negative between the two turning points

but that is exactly the reason why D is off

[signal meteor]

From max to min, the graph first increases the rate of decrease, and then decreases the rate of decrease to 0 so that it can reach the min and not continue to decrease

[errant gyro]

consider the region of the graph of D that's in between the two zeroes

is it positive or negative between the two zeroes?

[floral vigil]

its is c because the graph eventually rises, hence the gradient must be positive, and should cross x axis twice, which seems just like C

[signal meteor]

Right!

[errant gyro]

incomplete reasoning, but C is indeed correct

C is correct here because the graph starts out with a positive, but decreasing, gradient

it hits 0 at the first turning point and then has a negative gradient, which slowly increases back to 0 near the second turning point

after the second turning point, the gradient turns positive again

which is exactly the situation described by C

[floral vigil]

i am a bit confused, what would be a proper explaination for this then?

[errant gyro]

i just gave you the proper explanation

is there any part of the explanation that confuses you?

[floral vigil]

so the derivate should basically explain the situation of original graph?

[errant gyro]

the slope of the original graph

[floral vigil]

i think i get it

[errant gyro]

nice!

is there anything else?

[floral vigil]

nope, thank you both so much

[errant gyro]

glad to have helped!

!done

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[floral vigil]

.close

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[long quail]

does anyone know how to solve this quadratic equation?? i have no clue since i was only taught how to solve them when they’re in standard form

[unkempt atlas]

Well, you can still use the classic quadratic formula, however, you need to plug i for the determinant, using i = sqrt(-1)

[fickle rose]

this one you can just solve outright

[merry crystal]

have you studied complex roots?

[unkempt atlas]

Yeah, this

[long quail]

no we haven’t started

[merry crystal]

for the time being, u can just say that there exists no real roots by checking the discriminant

[long quail]

what is a determinant

[merry crystal]

or well, rearranging for x

they meant discriminant

b^2 - 4ac

[long quail]

oh that

but i have no b

[merry crystal]

so ur b is 0

[long quail]

oh

thank you!!

[floral vigil]

7x^2=-3
x^2=3/7
x=± √(-3/7)

[long quail]

if the discriminant is negative that means there’s no real solution right

[floral vigil]

there is no real answer as sq root of -3 is just impossible to find

[long quail]

so if i just put no r sol i would be correct??

[floral vigil]

you do need to show steps and then say that

[long quail]

wait can i show u mine

[floral vigil]

sure

[floral vigil]

if it says find discriminant then u use formula

you can just solve it right away if it says find x

[midnight pier]

no way you write 8 like that 😭

[long quail]

the question just says solve

[floral vigil]

then just solve for x, no need for the formula

[long quail]

how r u supposed to 😒

[long quail]

huh

wdym you need the formula tho

do i just use my calculator then

[floral vigil]

this is the quadratic formula, if it says use this formula then use the formula, if it just says solve you just find x using algebra

7x^2=-3
x^2=3/7
x=± √(-3/7)

[floral vigil]

this way

[long quail]

oh

what if my teacher didn’t go though that

through

[floral vigil]

through the formula??

[long quail]

no the algebra part, i don’t think she’ll accept it

[floral vigil]

then use the formula

[long quail]

can i still use the formula even tho

OKAY THANK YOU

[floral vigil]

yes

[long quail]

so it would be this right

[floral vigil]

yes

[long quail]

okay thank you so much 🫶🫶🫶🫶

how do i close the channel

[floral vigil]

no problem

!done

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[long quail]

thanks

.close

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[lavish totem]

I think i messed up idk if you can change sum and integral operators with an improper integral, ik its int from a to b but idk if a or b can be negative or positive infinity

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[spring stratus]

hi guys

[river hare]

hi

[spring stratus]

uhm do u guys know trigometry

[river hare]

no

I know trigonometry but not trigometry.

[errant gyro]

!da2a please, just send your question over!

[vale dock]

No need to ask “Can I ask…?” or “Does anyone know about…?”—it’s faster for everyone if you just ask your question! See https://dontasktoask.com/

[spring stratus]

OH YEA

thatt

[spring stratus]

ouu okayyas

sorry im new here

[errant gyro]

no problem! it's encouraged to just send your question so helpers can immediately see them

also, the bot pins your first message, so it makes it easier for helpers to see your question if your first message is itself the question

gentle reminder to OP to share question, if you have one

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[vernal folio]

Fellas

[vernal folio]

Given determinant of A(3x3) is 6

What is the determinant of adj(3A)

[spring jackal]

what properties of the determinant do you know, that might be applicable here?

[vernal folio]

I got the answer in tryna confirm

I'm

[spring jackal]

ok toss ur answer + work

[vernal folio]

3^6 x 6^2

[spring jackal]

yep looks good

[craggy girder]

@vernal folio

!done

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@vernal folio Has your question been resolved?

[craggy girder]

As op is not responding and his doubt seems to be solved
I'll close the channel

.close

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[river shale]

Please do not troll at help channels

Do you have a math question?

[eternal gyro]

.close

[river shale]

.close (He's gone)

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[river shale]

:((

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[silk magnet]

how do you find B and C

[drifting hornet]

similarity

do you see that little 3 - 4 - ? triangle

it's similar to the big one

[silk magnet]

so the ratio would be c/4 and b/3 and 12/5

how would you find the numerical values?

[drifting hornet]

well, since the ratio is equal, c/4 = b/3 = 12/5

now just solve it

[silk magnet]

oh i didnt know they were equal

thank you!

[drifting hornet]

that's a key property of similarity

equal ratios of corresponding sides

[drifting hornet]

np

[silk magnet]

ah i see

thanks

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[plucky wolf]

Need help with this don’t know what to do

[bleak cipher]

Plug in the values of x into the equation

So for the first point, we want to find y when x = 1. So if x = 1 and y = x+1, y = ?

[plucky wolf]

Ik what to do on the top part I just don’t know where to put the points at

[bleak cipher]

Ok well your horizontal axis is the x-axis and the vertical is y

So you want to select the points which have a horizontal (x) coordinate and vertical (y) coordinate that match your results

Does that make sense?

[plucky wolf]

But how do I know what side to start on the left or the bottom. And not really

[bleak cipher]

1 sec

Here's the first point as an example

Notice that horizontally, it is 1 square to the right (directly above the "1")

And vertically, it is up 2 squares, which is directly to the right of the 2

If you do this right, all 3 points should form a straight line

[lyric sundial]

Have you ever played battleship? @plucky wolf

[plucky wolf]

No

[bleak cipher]

That's a fire way of explaining this

[lyric sundial]

Ok, otherwise it was the same concept as that game

[plucky wolf]

Like this

Wrong pic

[bleak cipher]

Not exactly! So the point that you added has coordinates x = 2 and y =6

[plucky wolf]

Huh

[bleak cipher]

That's because it is 2 squares to the right, which is right above that 2 at the bottom, and 6 up which is flat with the 6

[plucky wolf]

So it can’t be touching the same number

[bleak cipher]

You want your next point after (x=1, y=2) to be (x=4, y=5)

It can touch the same number, you just need to select different numbers

Here's the answer to the question

[plucky wolf]

?

[bleak cipher]

Can you see the connection between the points and the numbers in your table?

[bleak cipher]

So, what's missing here is consideration for both the x and the y. While your y values are correct, you need each point to also reflect the x values

[final adder]

how would you plot the point 4,5?

@plucky wolf still there? c:

[vale dock]

@plucky wolf Has your question been resolved?

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[unkempt maple]

We were learning about finding inverse functions in AP Precalc

[unkempt maple]

We wrote the restriction for inverse of g as x>=2
But why do we need to write that? Isn’t it already implied in the function itself? In the part where it shows (x-2) we can see the restriction already

[unborn python]

i mean.... it depends on the teacher

some teachers doesn't require it

but some teachers for some reason gets really offended

just do whatever the teacher told you to, after all, they are the one giving you marks

[unkempt maple]

Oh 💀😭

I thought there was some kinda mathematical reasoning behind it that I wasn’t aware of

Somehow

[unborn python]

not really

[unkempt maple]

Alr ty 👌👌

[unborn python]

like, my IB teacher doesn't require me to like put down the domain of a function every time we write one

[unkempt maple]

Oh

Maybe my teacher just wants us to practice it

Okey dokey ima close this channel then

.close

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[plucky wolf]

So I did the one quadrant now I’m in to 4

[wraith heart]

where exactly is your question

[plucky wolf]

Idk how to do the points on these ones

[wraith heart]

what does "do the points" mean

[wraith heart]

yes i see the graph of the line

(-1, 7) is selected which is correct.

what are you stuck on?

[plucky wolf]

I just don’t know if it’s correct cause it’s going in different quadrant

[wraith heart]

what is "it" in "it's going in a different..."

[wraith heart]

not sure what you're trying to indicate with that line

[plucky wolf]

I’m asking is it OK for it to go in different areas cause I thought it was only supposed to be in the areas where equals?

[wraith heart]

still not sure what you mean by "it" in "it to go in different areas"

all lines go through more than 1 quadrant

[plucky wolf]

Are u able to just show me get to do it

[wraith heart]

i don't know what you're stuck on or what your question is

[plucky wolf]

I want to also know if it’s right or wrong

[wraith heart]

you did this point correctly. did you use the same method to pick the other points

[plucky wolf]

Yes but idk if I should keep going after that

[dapper dagger]

in no uncertain terms, explain the goal of the exercise

because I'm an observer and I also don't know what you're being asked to do

[fading vigil]

Does anyone know what Wolfram Math is?

[vale dock]

Someone else is already using this help channel. If you need help with a question, please open your own help channel/thread (see #❓how-to-get-help for instructions).

[plucky wolf]

I just need to know when I’m trying to stop on an equation

[dapper dagger]

now what does that mean? trying to stop?

what's the original problem statement?

[wraith heart]

try plotting one of the points and we'll tell you if it's correct or not

[plucky wolf]

Im at this one I need to know if im done or not or need to do the one below it

[wraith heart]

yes you do

(2, -2) is on the line and in a different quadrant yes

[plucky wolf]

This is a new one

Does this look correct

[cunning maple]

If i may-

[plucky wolf]

So this is just a faster way of doing?

[plucky wolf]

But I don’t know why it’s only letting me place two dots not more than that

?

[cunning maple]

i cant answer technical difficultys on the app. what course is it on ixl?

[plucky wolf]

Algebra

[cunning maple]

Oh i see. you only need 2 points.

[plucky wolf]

I’m at 50 need 80

Nvm i see why u talking about

What*

I’m talking about my score

[cunning maple]

what about the score?

[plucky wolf]

My score is at 50 and I need to get that 80

So I need to answer a question to get to 80

that I’m trying to hurry up and get this done so I can do my test cause I have to do test after this

[cunning maple]

just answer more questions if you want the score higher no?

[plucky wolf]

Yes, you’re right. I just don’t know what to do to get the questions done

[cunning maple]

as in turn in the question?

or the actuall solution?

[plucky wolf]

This

[cunning maple]

press that

[plucky wolf]

But is it right? What I put down

[cunning maple]

Oh. leme se

i think you might have x-8 y-1 wrong. you have it on y-2

[plucky wolf]

This?

[cunning maple]

like this no?

[plucky wolf]

Ima hit submit

[cunning maple]

6-6 is good but

the first point x-8 and y-1

is wrong i think.

you have it on y-2

[plucky wolf]

I see

It was right

[cunning maple]

yours?

[plucky wolf]

Yours

[cunning maple]

ah oki

phew

So sorry for butting in. i was just gonna watch

😅

[plucky wolf]

Are u able to help with the rest till I get done?

[plucky wolf]

It’s chill

[cunning maple]

well i can look at it. but im no pro haha

[plucky wolf]

K

What u think it is

[cunning maple]

Painting gimi a sec

[plucky wolf]

K

[cunning maple]

eh yeah its right

probobly

ahha

i cant paint for shi

[plucky wolf]

Let me check

[cunning maple]

o shi

wait

[plucky wolf]

Huh

I didn’t submit

[plucky wolf]

?

[cunning maple]

so its not on x-8 y2

you have a point on x-1 y2

smthing more like that

i belive

[plucky wolf]

The hats right I’m at 64

[cunning maple]

correct?

[plucky wolf]

Yes

[cunning maple]

Yay

[plucky wolf]

No on too this

[cunning maple]

gimi your solution first.

i dont wanna just give ya the answers

[plucky wolf]

K

[plucky wolf]

Where the ? Is are all those supposed to be ones cause I don’t know if we’re subtracting or what cause it doesn’t say.

[cunning maple]

y = 1

that means its just 1

only x changes.

draw it up for me :3

y 1 and x-4

y 1 and x 7

[plucky wolf]

One of these I think

[cunning maple]

well. almost. you mixed up Y

you have it on -1

not 1

so its below where it should be

X is correct.

see?

[plucky wolf]

New one

[cunning maple]

Compeare the last image i sent ya. to the one you just gave me.

see the green line?

[plucky wolf]

Yes

[cunning maple]

where would 9 be

[cunning maple]

okay. i see what your caught on.

Point to the Y line

the "Y Axis"

[plucky wolf]

I see now

[cunning maple]

ye good, now point to 9 on the Y axis

[cunning maple]

okay. were getting there. so now one point is on Y 9.

Dose Y ever change?

or is it "static"

[plucky wolf]

Static

[cunning maple]

right. so where should the other point be?

[plucky wolf]

It would be 9y 9x?

[cunning maple]

Why 9 x?

[plucky wolf]

I meant 5x

[cunning maple]

hmm. here perhaps this will help

So the
Orange is X
and Purple is Y
Green is the result.

so. one of your points is correct.

Dose the "purple - Y" add up with your second point?

[plucky wolf]

No

[cunning maple]

so where should it be? on Y

[plucky wolf]

Like this

[cunning maple]

Ah i see where your caught up.

Lets define it like this

1 point on the graph. is the Combiantion of 2 values. Y and X yes?

[plucky wolf]

Huh what are u saying

Yes

[cunning maple]

alright so. why is Y value of one of the points on Y0

And X0

you have 2 points right now.

One point is on X -1 Y9
the other is X0 Y0

when you should have something more like X0 Y9
X5 Y9

[plucky wolf]

Like this

[cunning maple]

Better. now you have one point on X0 Y9 and the other on X5 Y0

So one Is correct. the other you need to alter the Y value to 9

[cunning maple]

why did you change the X0 Y9 point to -> x-1 y9

[plucky wolf]

Where do u see the x0 at?

[plucky wolf]

I see

[cunning maple]

see?

[plucky wolf]

Ye I think

[plucky wolf]

Like this?

[cunning maple]

Your X is correct yes. but the Y is still wrong on the second point.

[cunning maple]

x is correct yes. by y is wrong. perhaps this will help

Do you see where every axis is?

and what numbers they have?

[plucky wolf]

No, not really I don’t know which side is going to be negative or not

[cunning maple]

ah i see.

well look at the numbers for one.

so top and right is positive

left and down is negative

Red is negative Green is positive here

[plucky wolf]

This???

Please tell me this is right bro I been in that’s for hours

[cunning maple]

sadly i cant. but you are very close. lets go back to this.

this point here

is the problom rn

[cunning maple]

you moved it up by 1

so you did Y+1

now you have y 1

you need y 9

[cunning maple]

now you did y - 2 now its at y - 1

you moved the Y down

to the nagative values

move it to y9

[cunning maple]

now its ay Y 0

you added +1

[plucky wolf]

This shit Is yo confusing

[cunning maple]

okay look. here its y0

here its y1

do you see what changed?

point to it

[cunning maple]

OKAY its the correct direction.

[plucky wolf]

So it’s right

[cunning maple]

no- but your getting closer

i want you to point to what changed rn.

like draw a line or something

[plucky wolf]

Idk what changed

That the bottom is negative and the top is positive

[cunning maple]

well yes your correct on that

you know what the Y axis is right?

[plucky wolf]

Yes

[cunning maple]

do you know how to tell where ON the y axis something is?

[plucky wolf]

?

[cunning maple]

the y axis has numbers yes?

[plucky wolf]

Yes

[cunning maple]

those numbers are the value of Y

its essentialy where ON the Y axis you are

[plucky wolf]

So what are u trying to say idk what your saying

[cunning maple]

do you understand what i mean by value of y ?

[plucky wolf]

No

[cunning maple]

these 2 are the same

do you understand now?

[plucky wolf]

Yes

[cunning maple]

so if i said

the value of y

what would that mean

[plucky wolf]

Y

[cunning maple]

so can you point to Y 4

[cunning maple]

circle it for me

[cunning maple]

yes. so what is Y 9

[cunning maple]

are you circling 10? or lower?

[plucky wolf]

Lower

[cunning maple]

aigh. so what Y is this on?

[plucky wolf]

Idk

[cunning maple]

and what if i were to do this-

[plucky wolf]

5y

[cunning maple]

Exactly

so. where would you put it for y9?

[cunning maple]

mmm- so lets try again, point a line at y9

a straight line

a line that goes along Y9

[cunning maple]

Yes. good. now. if that is y9. what is the blue point on that isnt on y9 on?

what Y is it on?

[plucky wolf]

Idk this is confusing

[cunning maple]

dose this help?

[plucky wolf]

??

?

[cunning maple]

lts focus on this point

[plucky wolf]

What do you mean focus

[cunning maple]

as in lets move this point

dont worry about the other point

[cunning maple]

so tell me the Y of these 2 lines

what Y are they?

[plucky wolf]

5 and 9

[cunning maple]

yes- and what Y should they both be on?

[plucky wolf]

Shouldn’t one be on c

X*

[cunning maple]

ah. we will get to that.

[plucky wolf]

5 and 9

[cunning maple]

so. here you see a list. yes?

[plucky wolf]

Yes

[cunning maple]

you see how the y is always 9 ?

[plucky wolf]

👍🏽

[cunning maple]

so. if the y is only 9

and should only be 9

[cunning maple]

So how can this be true?

• it cant can it?

[plucky wolf]

It’s not true

[cunning maple]

YES

that right there.

is Y9

[plucky wolf]

So that’s it?

[cunning maple]

so. what Y should the other Point be on?

you have 2 points remember?

[plucky wolf]

Yes

[cunning maple]

so what Y should the other point be on.

[plucky wolf]

5

[cunning maple]

why do you think that?

[cunning maple]

i want you to point where you are getting the 5 from

[cunning maple]

AH. i see. well. those 2 numbers

are 2 different axis.

here leme show you

[plucky wolf]

-9?

[cunning maple]

you see how these 2 are connected yes?

[plucky wolf]

Ye

[cunning maple]

you see how these are conected yes?

[plucky wolf]

Yes

[cunning maple]

what if i were to do this-

[plucky wolf]

What are u asking me

[cunning maple]

do you see how the X is connected to the graph?

[plucky wolf]

No

[cunning maple]

okay.

do you see the similarity?

[plucky wolf]

Yes

[cunning maple]

so- if we put them on top of each other

you see where the lines cross each other?

[plucky wolf]

Yes

[cunning maple]

Thats your goal.

for your point

[plucky wolf]

But I can only place 2 points

[cunning maple]

yes you only need 2. it gives you 5 values

but the 5 values only show different POINTS on a line.

you need to draw the line

[cunning maple]

YES

BINGO

[plucky wolf]

Well, what about the five don’t has to go vertical

[cunning maple]

so do you understand a little bit whats going on here?

using the same logic?

we just used?

[plucky wolf]

A lil

Do I submit

[cunning maple]

we can do better- as the line is correct but one of the points are a little off

that might trigger a fault

so on the picture i sent

you see how 1 of your points dosnt line up with a intersecting red and green line?

i want you to line it up

[cunning maple]

is that lined up?

[plucky wolf]

Isint that how it is

Line what part up

[cunning maple]

remember how you lined one of the points up?

with the green and red lines

right at the intersection

[plucky wolf]

No

[cunning maple]

you see where the lines cross correct?

both of them

the red and the green

[plucky wolf]

Yes

So you just want me to draw exactly like your

[cunning maple]

and one the points is right where the 2 lines cross

yes?

[plucky wolf]

Yes

[cunning maple]

do you understand why we put the point there?

[plucky wolf]

I can only place 2 so do I move one

[cunning maple]

yes you do need to move one. but do you understand why

[plucky wolf]

Cause don’t look great

[cunning maple]

hm?

[plucky wolf]

The first one looked right to me

So I don’t know what to do can we go to the next one cause this one is confusing

[cunning maple]

okay. lets do a different approach. explain whats confusing.

what part.

[plucky wolf]

Like you said the first one was right, but then you said we can do better like what else can we do to make it better?

And you’re saying draw a line I don’t know which line I’m supposed to draw in which point to take away

[cunning maple]

the line. is drawn between the points you place down.

the list gives you the location of multiple points. from the list you choose 2 points

your LINE between the points was correct. but the location of the points themselves was not.

[plucky wolf]

Idk what your saying I have to do way more questions we been on this for 2 and a half hours

[cunning maple]

you need to understand Why your doing what your doing. not just doing the questions.

if you understand why you can do as many of them as you wish

Tell me what you dont understand

[plucky wolf]

I don’t understand where number is cause they’re both weird and it just looks weird like the left side is also y the right side is also y like it’s just confusing

I’m a visual learner so just typing isn’t really working that’s why I’m used so like pictures and stuff

[cunning maple]

hm.

alright.

this is a visual indication

of the numbers

and where they are on the graph

are you following with me so far.

[plucky wolf]

Yes

[cunning maple]

and you understand how the red is pointing to the X axis

and the GREEN is pointing to the Y axis

yes?

if not say so and il explain that

more in depth

[plucky wolf]

I see

[cunning maple]

okay.

do you understand this image?

[plucky wolf]

No

[cunning maple]

okay- the point where the lines meet. is the location of ONE of the TWO points you need. do you understand why?

- i need to go sleep. can someone else pick this up T.T

[vale dock]

@plucky wolf Has your question been resolved?

[vale dock]

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[north scarab]

hey Im trying to find the sides of this window

[north scarab]

i know its 10=2x+2y+ something

Im basically trying to find the curved length

the radius would be 2x divided by 2

[stark wedge]

indeed, the radius is x

is the curved part stated to be a semicircle?

[north scarab]

yes

[stark wedge]

cool, maybe don't crop off the first sentence of a question next time

so you know the curved part is half of a circle with radius x

do you know how to write down what its length is

[north scarab]

Idk the formula of the perimeter of the circle

[stark wedge]

that so?

does C = 2πr look foreign to you?

i mean, what did you even think the number pi was if you somehow went without knowing this

[north scarab]

It doesn’t but I havnt touched it in a long time

[stark wedge]

dawg did you think pi was just a funny number mathematicians made up for no reason 😭

[north scarab]

Nah pi is something related to circles

Ik that

[coarse oasis]

I lowk think you are baiting bro

[north scarab]

what’s there to be bait about bro I’m fr 😭

I was always bad with this

[stark wedge]

oh so you just never thought about that beyond this.

got it.

well you will have to somehow burn the formulas for the area and circumference of a circle into your brain mate

they are also easy to Google unless you have fingers falling off disease (which iirc you don't)

[errant gyro]

(or OP can just directly WA in this channel i think?)

[north scarab]

wa?

[errant gyro]

wolfram

,w circumference of circle

[rocky lotus]

Results provided by WolframAlpha

Click here to refine your query online
Upgrade to WolframAlpha Pro!

Requested by furina.siyanse

[stark wedge]

yeah if he has a severe form of cant get off discord disease

which iirc he also doesn't

[north scarab]

So half of it’s just pi*r

[stark wedge]

well yes only instead of r you got x

[north scarab]

but woudnt that account for this length as well

[errant gyro]

when you find the circumference of a circle, does it include the diameter of the circle?

[north scarab]

Nope

[errant gyro]

then why are you worried the circumference would take into account the diameter?

[north scarab]

ah, I understand

so 10= 2x +2y + pi*r

[errant gyro]

where did the extra 2pi come from?

[stark wedge]

pi*x

[stark wedge]

i said this, did you see it?

[north scarab]

so 10= 2x +2y + pi*x

[stark wedge]

yes

[north scarab]

thankks I’ll see if I can do it from here

.close

[vale dock]

Channel closed

Closed by @north scarab

Use .reopen if this was a mistake.

[vale dock]

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• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
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• Be polite and have a nice day!

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[wanton tulip]

hello

[feral sapphire]

What do you need help with?

[wanton tulip]

sorry i needed help answering question 3

[feral sapphire]

Do you have any thoughts on what the answer is?

[wanton tulip]

i did but i think im doing it wrong because its saying theyre incorrect

[feral sapphire]

Well, what did you think the answer was?

[wanton tulip]

4

[feral sapphire]

Ok. The thing to note about limits is that they are not concerned with the actual value at c given x -> c. Limits are only concerned with the value of a function as it gets infinitely *close * to x = c.

[wanton tulip]

oh alrighty

[feral sapphire]

What do you think the answer is now?

[wanton tulip]

im sorry im not entirely sure

[feral sapphire]

The limit is x -> 3 so you have to look at what the function is doing on both sides of x = 3.

[wanton tulip]

right

[feral sapphire]

Try to imagine a point on the left side and right side on the line. What value of y is it approaching?

[wanton tulip]

is it 2?