Question

If f(x) = 3x^2 + 5x find f(-2)
-22
-9
2
22

Answer 1

2

Explanation:

To evaluate f(- 2) substitute x = - 2 into f(x)

f(- 2) = 3(- 2)² + 5(- 2) = (3 × 4) - 10 = 12 - 10 = 2