Answer: f(-3) = 81
Step-by-step explanation:
f(-3) = 9(-3^2)
f(-3) = 9(9)
f(-3) = 81
Answer:
f(- 3) = 81
Substitute x = - 3 into f(x) , that is
f(- 3) = 9(- 3)² = 9(9) = 81
