Question

Lf R(x) = x2 – 3x – 1, find R(-2).

a.9
b.-9
c.-3
d.-11

Answer 1

A.

Explanation:

If R(-2), then x = -2. Just plug in -2 for x. -2^2 - 3(-2) - 1 = 4 + 6 - 1 = 10 - 1 = 9. The answer is 9.