y-2x-8=0

Add 2x to both sides of the equation.

y-8=2x

Add 8 to both sides of the equation.

y=2x+8

y=2x+8

The given equation y=2x+8 can not be written as y=kx2, so y doesn’t vary directly with x2.

y doesn’t vary directly with x

Find the Quadratic Constant of Variation y-2x-8=0