Respuesta :

you have to solve it first. 

2x+4y=-8
-2      =-2
           -10
4y=-10
---
4y

4 divided by -10 is -4
2x+4y=(-8)
-2x -2x
4y=-2x-8
Divide 4 from both sides
y=-2x-2
Can u graph that? Just comment if u need further instruction