Question

Solve the system of equations by graphing. 2x-y=-2, 4x+y=-4

Answer 1

2x-y=-2
4x+y=-4
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6x=-6
x=-1

then y=1

Answer 2

excusme y=0

Answer 3

i need two other points

Answer 4

only have one solution

Answer 5

Orange is 2x-y=-2
Purple is 4x+y=-4

Answer 6

do you know the plot points?

Answer 7

@RoseDryer

Answer 8

What do you mean by plot points?
Like the y-intercept and stuff?

Answer 9

yes like where did you plug in those lines on the graph? for the first one and second one

Answer 10

Well I point them in the equation:
y=mx+b (where m=slope and b=y-int.)
To get to that from the first equation
2x-y=-2
Subtract 2x on both sides to get
-y=-2x-2
Divide by -1 on both sides to get
y=2x+2
When you graph it 2 in the y-int. and from there you go up 2 over 1 to get to the next point of the line,
For he second equation:
4x+y=-4
Subtract 4x on both sides to get
y=-4x-4
When you graph it -4 in the y-int. and from there you go down 4 over 1 to get to the next point of the line,