- Destinyyyy

Graph..

- katieb

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- Destinyyyy

2x+y=-8
4x+2y=-16

- Destinyyyy

y=-2x/1 -8
y=-2x/1 -8

- UsukiDoll

Is it just graphing
2x+y=8
4x+2y=-16 ?
did you put it in y=mx+b form first?

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## More answers

- Destinyyyy

Yes I did.. My graph only goes to 6

- anonymous

Does you graph only goes to \(6\) in one axis or both axes?
Just plug in \(x\) values that are small, but still large enough that you can graph the lines.

- Destinyyyy

Yes it only goes to 6.. Huh?

- Destinyyyy

I got the same line for both equations..

- anonymous

Then just graph a /single/ line? When two lines overlay each other in a system of equations, it means there are infinite solutions.

- UsukiDoll

original
2x+y=-8
4x+2y=-16
y=mx+b form
y=2x-8
y=-2x-8

- Destinyyyy

Yes I know that.. But it was only giving me options of x= a number and y= a number

- UsukiDoll

for some reason I got the lines to be perpendicular
when I graphed
y=2x-8 and y=-2x-8

- UsukiDoll

maybe we have to solve for x and y using the graphing method

- Destinyyyy

You missed the negative on 2

- Destinyyyy

Okay.. How do I do that?

- UsukiDoll

no I didn't.
2x+y=-8
4x+2y=-16
is your original equation
so I put it in y=mx+b form
for the first equation
2x+y=-8
y=-2x-8
for the second equation
I need y to be just y... no digits next to it so I divided the whole thing by 2
4x+2y=-16
2y=-4x-16
so dividing the whole equation by 2
y = -2x-8

- UsukiDoll

so we can either graph
y=-2x-8 and y=-2x-8 by letting x be any number, use elimination method, or find the y intercept which is
set x = 0
for y = -2x-8 and y=-2x-8
oh darn I did miss that negative the first time lol

- UsukiDoll

<---- hasn't slept well in 3 days... mistakes are magic XD

- UsukiDoll

ok... graphing y = -2x-8 and y =-2x-8 gave me a single line.

- UsukiDoll

maybe we just need to find intercepts after this... ?
y = -2x-8 and y=-2x-8
for x -intercept let y = 0
for y-intercept let x = 0

- Destinyyyy

Im leaving to take my final in less then 20 minutes.. last night I guessed on this problem

- UsukiDoll

hmm... what was the question? could you give me the details?

- UsukiDoll

was it just graph
or find intercepts
or solve for x and y ?

- Destinyyyy

It was graph

- UsukiDoll

ok then change the equations into y=mx+b form and graph letting x be any number you choose and solve for y
so take y=-2x-8 for example
if I let x = 1
then y = -2(1)-8=-1-8=-10
so the point is (1,-10)

- Destinyyyy

Thats it???

- UsukiDoll

yeah if it just said to graph, and that's how you find points manually

- Destinyyyy

Okay.. Hopefully I remember that

- Destinyyyy

Thank you for your help.

- UsukiDoll

you're welcome :)

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