A student finds the quadratic inequality that represents the shaded region as y < -15(x - 2)(x - 6). The inequality is because testing the point (4,20) simplifies to the inequality:
a) y < -15(x - 2)(x - 6)
b) y > -15(x - 2)(x - 6)
c) y ≤ -15(x - 2)(x - 6)
d) y ≥ -15(x - 2)(x - 6)
