Algebra: Linear Graph Sketching

[hoary scarab]

<@&286206848099549185>

[torpid skiff]

!15m please.

[odd dragon]

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.

[hoary scarab]

MY BAD

[gleaming flint]

Heyyy do you still need help??

[hoary scarab]

yea

where do i put the two points

[gleaming flint]

Okay okay sooo the equation it gave you is in the y=mx + b form

Where m is ur slope and b is ur y intercept

[hoary scarab]

mhmm

[gleaming flint]

The y intercept is where the line crosses the vertical line on the graph

So b is -1

So on the graph you’d plot a point at (0, -1)

[hoary scarab]

like this?

[gleaming flint]

Yes yess

And then for the second point, you have to use the slope, which is m in this case

M in the equation is -3/2

For slopes that are fractions, you can use the rise over run method

[hoary scarab]

so like

-3 and go up 2?

[gleaming flint]

Other way around!

Or yes yes it depends on what way ur coming from

As long as it goes down 2 and right 3 from the left

[hoary scarab]

like this?

@gleaming flint

[gleaming flint]

Sorry sorry I switched it around my bad, move 2 spaces down and 3 to the right

As the name suggests rise/run

Whatever on top is how much ur going up or down

And whatever’s on bottom is how much ur moving left or right

[hoary scarab]

like this

[gleaming flint]

No not not quite

Give me a second to draw the answer

Sorry the lines are bad it’s hard to draw on phone but

The like should look like this

[hoary scarab]

wait

so theres a point on positive 2?

[gleaming flint]

As the slope is - 3/2 it should be pointed downwards

[hoary scarab]

i needa erase the one on -1?

[odd dragon]

Algebra: Linear Graph Sketching

[gleaming flint]

What do you mean? As in erasing the point (0,-1)?

[hoary scarab]

i put a dot here

on ixl you gotta put 2 dots

for the anwer

[gleaming flint]

Yes yes all the red dots I drew were possible answers

You only gotta choose one

[hoary scarab]

oh so i dont gotta erase my dot on -1

[gleaming flint]

But the green point that u put, you definitely need it

[hoary scarab]

ok

[gleaming flint]

Yes yes don’t erase that one because it’s the most important point

[hoary scarab]

this good?

thx

[gleaming flint]

Yes yes

[hoary scarab]

your the goat

do i gotta make a different forum for my other questions

or can i just stay in here

[torpid skiff]

are they related?

[hoary scarab]

yea

[torpid skiff]

then use this post

[hoary scarab]

well

different questions same quiz

[torpid skiff]

are they related to this topic?

[hoary scarab]

yea

[torpid skiff]

(see the new name of your post to identify the topic)

[hoary scarab]

yup

thats what im on right now

[torpid skiff]

so, do you want to try doing it yourself with us watching, or do you need guidance on this as well

the steps are the same, just that you will want to multiply out the parentheses first

[hoary scarab]

alright hold up

ima get this first try watcch

is this even close??

[hoary scarab]

did i get this correct?

[torpid skiff]

let's see

the y-intercept is wrong and the graph is way too steep

[hoary scarab]

oh

[torpid skiff]

I'll give you a hint

the y-intercept here is positive

[hoary scarab]

it's 2 right

[torpid skiff]

it's not 2, unfortunately

[hoary scarab]

oh

do i mutliply the -1 and 5?

[torpid skiff]

that -1/5 is one number

you'll need to multiply it with the -2 inside

[hoary scarab]

oh

[torpid skiff]

(as well as the x)

[hoary scarab]

i might need guidence

[torpid skiff]

sure thing

lemme get my paint out

[hoary scarab]

alr

[torpid skiff]

you have this

[hoary scarab]

mhmm

[torpid skiff]

step 1: distribute the -1/5 against the two terms inside the parentheses

[hoary scarab]

uhhh

how do i do that?

[torpid skiff]

multiply -1/5 to each term separately

much like how 3(x - 2) becomes 3x - 6

[hoary scarab]

y=10?

[torpid skiff]

there should be an x there

also, 10 for the constant term is wrong

1/5 x 2 is not 10

[hoary scarab]

0.4

well

[torpid skiff]

correct

[hoary scarab]

negative 0.4

[torpid skiff]

positive 0.4 (or positive 2/5)

[hoary scarab]

doesn't the negative on the 1/5 make it negative?

[torpid skiff]

remember that two negatives multiply to a positive

[hoary scarab]

ohhhh yeaa

[hoary scarab]

double negatives make a positive

right

[torpid skiff]

don't forget the x

[hoary scarab]

so y=0.4x whats next?

oh

[torpid skiff]

0.4 is the y-intercept

you still have to multiply -1/5 by x

that's why I put two arrows there

[hoary scarab]

x is just 1 right

[torpid skiff]

x is 1x yes

not literally 1, but 1x

[hoary scarab]

-0.2

[torpid skiff]

x

don't forget the x

[hoary scarab]

yea

-0.2x

[torpid skiff]

so what is the full equation?

[hoary scarab]

lemme erase that point at 2

i think you said that was wrong

[torpid skiff]

do you have the equation first?

that will make it clearer

[hoary scarab]

what equation

this?

[torpid skiff]

the one you made via the multiplication

[hoary scarab]

this?

hold up

i gotta go home

[torpid skiff]

ok so you got -0.2x, I presume?

[hoary scarab]

in like a minute

can we finish tomorrow

[torpid skiff]

tomorrow as in?

[hoary scarab]

im at my sisters house rn

with my pc

im going home in a minute

[torpid skiff]

I know, I mean how long do I have to wait? we might be in different timezones

[hoary scarab]

im na east

i think i have soccer practice tommrrow

so like

[torpid skiff]

a rough estimate of the number of hours then

[hoary scarab]

5pm

14

[torpid skiff]

that will be midnight for me, so you may have to wait for another helper

[hoary scarab]

k

[young lion]

someone is so graciously helping you 😭 it usually is better to just quickly finish up

[torpid skiff]

but sure, you may leave this thread open then

[hoary scarab]

for sure

[gleaming flint]

Feel free to ping me aswell if you need help!

[torpid skiff]

if you do end early, just send a message in this thread when you're ready to continue

if I'm available I'll usually be lurking the help forums and channels

[young lion]

you guys are great for helping out online... i struggled a lot back in the day to get help so im quite grateful when someone is helping me...

id suggest that you guys take op through the thought process of graphing. i find it easiest to graph with two points one being the x intercept the other the y intercept.

so maybe take op through how to find the x and y intercept when he comes online. its just then joining the two points.

[torpid skiff]

sure thing

[hoary scarab]

You online rn?

[hoary scarab]

alright im done

[torpid skiff]

so you no longer need help? or do you still need help? (you pinged me at 4 in the morning for me btw)

[hoary scarab]

Yea I no longer need help

[torpid skiff]

.solved by OP agreement