f(0) = -30 + 2 = 2f(2/3) = -3(2/3) + 2 = -2 + 2 = 0f(-3) = -3(-3) + 2 = 9 + 2 = 11f(-1/2) = -3(-1/2) + 2 = 3/2 + 2 = 7/2
f(0) = -30 + 2 = 2
f(2/3) = -3(2/3) + 2 = -2 + 2 = 0
f(-3) = -3(-3) + 2 = 9 + 2 = 11
f(-1/2) = -3(-1/2) + 2 = 3/2 + 2 = 7/2