Question

Let f(x) = 3x^2 + 1 and g(x) = 4x + 1. Evaluate (f ∘ g)(–1).

–3

4

17

28

Answer 1

Compute g(-1) = 4(-1) + 1 = -3.
Then f(g(-1)) = f(-3) = 3(-3)^2 + 1 = 3(9) + 1 = 28.

Answer: 28