Which Equations define y as a nonlinear function of x? Select all that apply. a) y=7.4x
b) y=2x+5^2
c) y=10x^2
d) y=5x-3
e) y=(1/2)x
f) y=2x^3-1

If two parallel lines are cut by a transversal, interior angles on the same side of the transversal are supplementary. a. always b. sometimes c. never