Question

1. Use the functions to answer the question.
f(x) = x^2 + 3; g(x) = 6x
Which is equal to (f ◦ g)(x)?

A. 6x^2 + 3
B. 6x^3 + 18x
C. 36x^2 + 3
D. 36x^2 + 18


2. Use the functions to answer the question.
f(x) = 4x – 5; g(x) = x + 3
Which is equal to (g ◦ f)(x)?

A. 4x – 2
B. 4x + 7
C. 4x + 12
D. 5x – 2


3. What is the value of (g of)(12) ?
f(x) = 4x; g(x) = x – 9
(g of)(12)= ?

4. What is the value of (f og)(-4)?
f(x) = 3x + 6; g(x) = 4x – 1
(f og)(-4)= ?