Question

If f(x) = 3x²+x-2, then f(-2) =



-16
32
8
12

Answer 1

f(- 2) = 8

Explanation:

To evaluate f(- 2), substitute x = - 2 into f(x), that is

f(- 2) = 3(- 2)² + (- 2) - 2 = 3(4) - 2 - 2 = 12 - 2 - 2 = 8