Find the y intercept for the equation -2x+2=4

Answer 1

Solve for x. This will give you a vertical line at whatever x value you get. Does it intersect the y axis? If not, there's no y-intercept.

Answer 2

Was your equation supposed to say
-2x + 2y = 4 ?

the way you have it, TutorCat is right, you have a vertical line which obviously does not cut the y-axis, since it is parallel to it.

in general, to get the y-intercept, let x=0 in your equation and solve for y.