Answer:
y = -2x - 4
or
2x + y = -4
Explanation:
let's put it into slope intercept form
2x - 2x + y = 8 - 2x
y = -2x + 8
so the slope is -2 so we just need to change the intercept:
your equation should be y = -2x - 4 or 2x + y = -4
depending on how your teacher wants it