slopes help ? :)

[waxen sierra]

hii i need some help with this problem, i just did a diff problem and this is telling me i am wrong so pls help. I put the answer as y-3=3(x-1) since the slope form is y-y1=m(x-x1) but i dont understand. thank uuuu :))

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[heavy siren]

L is perpendicular to y=3x, not parallel

[waxen sierra]

y-y1=m(x-x1) this is what it says

for the form

i dont understand tho because somebody on the servver told me it means -1 but i tried using that as m and it was still wrong

[heavy siren]

you didnt

you used -3

-3*3 isnt -1

[waxen sierra]

no i mean

i used it

before

and it was still wrong

[heavy siren]

you didnt

what do perpendicular slopes multiply to?

[waxen sierra]

i put y-3=-1(x-1)

[heavy siren]

yeah, random number guessing is usually wrong

[heavy siren]

.

[waxen sierra]

but the homework website keeps saying wrong

oh

[heavy siren]

.

[waxen sierra]

-1 i think

[heavy siren]

so what times 3 gives you -1?

[waxen sierra]

um

[heavy siren]

ie solve 3m=-1

[waxen sierra]

u cant times that

but where did the 3m come fro

?

[heavy siren]

what's the slope of y=3x?

[waxen sierra]

3

[heavy siren]

ill call L's slope m

[waxen sierra]

cus it goes 3 up and 1 right

[heavy siren]

so you need 3 * m to be -1

ie... 3m=-1

so what's m?

[waxen sierra]

ok so.....

-1/3

[heavy siren]

now do what you did

[waxen sierra]

wait

but it doesnt make sense

because where is it coming from

[heavy siren]

where is what coming from?

[waxen sierra]

is it from my original answer?

the 3

[heavy siren]

by having eyes and the ability to read

[waxen sierra]

😭

[heavy siren]

.

you yourself said 3

[waxen sierra]

oh ok so the slope changes

when u add the -1

ok it makes sense

so the -1/3 is coming from another slope

[heavy siren]

duh

it's the slope of L.................

(you can also just... do rise/run for this since you have the picture)

[waxen sierra]

no we just said it was 3

wait

im sorry

[heavy siren]

jesus be literate for a second

[waxen sierra]

😭 im sorry

[heavy siren]

What is the slope of y=3x?

[waxen sierra]

3

cus y=mx+b

and m is slope

[heavy siren]

call the slope of L m, yes?

[waxen sierra]

ohh

wait ur making sense now

cus there is a red and blue line and we need both of those slopes

so 3 is one of them and the other one is -1

so together it is

-1/3

cus u pushed them together

[heavy siren]

not remotely

[waxen sierra]

ok it makes a lot of sense

thank u

i think i got the rest then

[heavy siren]

I doubt you do, but ok

[waxen sierra]

i rlly do

[heavy siren]

I have a line with slope -1/2, what's the slope of a line perpendicular to it?

[waxen sierra]

umm

1/4?\

since perpendicular means 90

[heavy siren]

Like I said, you dont know what to do

[waxen sierra]

wait

i do know now

i just thought about it for longer

[heavy siren]

Ok, what is it then?

[waxen sierra]

wait let me do the math

[heavy siren]

No, you said you know now

not in a minute

[waxen sierra]

wow

ok so

-1=-1/2

so we move the -1 over

and divide -0.5/-1

[heavy siren]

this is just wrong

[waxen sierra]

[heavy siren]

again, maybe this time you'll read instead of blabbering

Slopes of perpendicular lines multiply to what?

[waxen sierra]

-1

[heavy siren]

the unknown, to be determined, slope is m. So you know what equation involving m must be satisfied?

[waxen sierra]

yes

[heavy siren]

what is it

[waxen sierra]

something times x = -1

[heavy siren]

so you have 2 unknown slopes?

[waxen sierra]

no

[heavy siren]

you just wrote so

[waxen sierra]

slope 1 x slope 2 = -1

[heavy siren]

still 2 unknown slopes?

[heavy siren]

.

[waxen sierra]

ok um

-1/2x=-1

[heavy siren]

yes, now what's x?

[waxen sierra]

-1/0.5

[heavy siren]

simplified? Then check your answer

[waxen sierra]

um let me get a calcualator

calculator*

[heavy siren]

fact: 1/(1/m) = m as you can readily check/prove

[waxen sierra]

im really sorry

but you just kinda lost me

i thought it was 1/1/2

[heavy siren]

yes

which by what I just said, is 2

[waxen sierra]

but why does it say 1/1/m

[heavy siren]

you dont need a calculator to do reciprocals

cause it's a rule that works for numbers that arent 2

[waxen sierra]

umm im sorry but i don't know how to do that

ohh

[heavy siren]

that's very evident

[waxen sierra]

omg

its 3

2(

bro i meant 2

[heavy siren]

yes, 1/(1/2) = 2.

[waxen sierra]

omg i am so smart

ok im good at this I think

[heavy siren]

dont get cocky

[waxen sierra]

wow

wait

so just so we are clear

myy answer that i got

y-3=1/3(x-1)

[heavy siren]

missing something

[waxen sierra]

oh sorry

-1/3

[heavy siren]

yes

[waxen sierra]

woahhh

i just did that

oki i can do the other form by myself since it is just y=mx+b

thanks but also only a 50% thanks cus u were roasting me

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