First isolate the y term and move everything else to the other side of the equation.
2x - 8y = 32 Move 2x to the right.
-8y = -2x + 32 Divide both sides by -8
y = (1/4)x - 4
Slope intercept form is y = mx + b. Where m is the slope and b is the y intercept.
Thus, the slope is (1/4) and the y intercept is -4.