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\[\left\{ 2x+y=-7 \right\} \]

y=2x-7

\[\left\{ -3x+2y=14 \right\}\]

{−3x+2y=14}
-2y -2y
-3x=12
/-3 /-3
x=-4

\[\{\begin{matrix}2x + y = -7 \\ -3x+2y = 14\end{matrix}\}\]

ok i got through the first step

wait, im confused??

2x+y=−7} in y=mx+b for its like this y=2x-7

i plug in the other equation into y=mx+b

yess

yes

so now i jst do this

y=2(-4)-7

y=-8-7

???

You don't do any algebra when you solve by graphing.

(Other than the algebra to get the equation into standard form)

wait so how do i get the corrdinates?

yes i already have some graphed because i have a multiple choice.

ok

if you needl help ask me

yes i do

ok

i dnt noe how to get the y value?

ok what is your first eqution

do i jst plug it into the equation

whats the equation

2x+y=-7

Just plot 2 points and draw a straight line that goes through each of them.

polpak i tryed that its doesnt help

either way i dnt need to graph them they r alrdy graphed

ok good

Oh, then just check to see which ones go through the points you plot.

ok i will check.

but do you get how to get x an y

no i dnt

yoplak you mean at which oints do they intersect

i tried to check on the graph and didnt understand

so ok diid you changed the equation they give you to y=mx+b form

yes

y=2x-7

what are the equations that you changed

the top one which is 2x+y=-7

ok

so do i jst plug in the x value that i got

which was -4?

can you attach this work and give me the linnk

how?

what numbers diid you use for x

ask one of your parents

ohh the choices u mean??

ok

a.(-4,-1) b.(-4,1) c.(4,1) d.(4,-1)

i think its either a or b.

wht is the questiom

solve the system by graphing

ok diid you grpah the equatios

noo they r alrdy graphed they r the choices too withthe x and y values

what doe the graph show does it show 2 lines crossing each other

yes

at what point do they intersect

in other words cross at which 2 points

which one??

a is 0 n 6 i think

both of the lines

how do i knoe they r like in the middle of 2 #s?

can you make an attachmen t to this work so i can see this

ask your mom or dad

so i can help you better and faster

i wuld have to scan it to the comp.

yes

ill see wait a lil

ok

u there

yes

diid you scan it

im doing it rite now

ok

what grade you in

8th and u??

me too

ohh

am good at math i diid this already

i knew it your were in 8th

ohh im not so good

are you finsih scaning

ok its saving

ok give me the link

i cant find it

wait a lil plz

ok

ohh it look all weird

how

let me scan it again

you made it uupside down

yea i noe im scanning it again.

ok how many questions you have got i can help you

quite a feww.

ok am happy to help

are you doing scanning

yes

ok

plz give me the link

ohh sry i gave u the wrong one

ok it wont open though

ohh that was the other side let me do it one more time srry.

make it clear becuse it hard to understand the questions

i cant see th egprah for question 3 it confusing its dark

i noe thats the best ican get it too

ok so why are the graphs colored

idkk

because on my paper they r shaded with like gray n black

why though

because thats how they r

heyy r u still there??

yes

ok

whicc question you working on

4.

its a -4,-1

how do u noe?

jst tell me how u got -1?

ok if you plugg -4 for bopth equations for x you r x will be -4 and y -1 for both equations

i pluged it in and got this

y=2(-4)-7

y=-8-7

which equals 15 ???

???

heyy

r u still there???

hey

yeah