7

Set 5: Function Notation (Beginner)

Explanation

Answer: B

PROBLEM

If f(x) = 4x + 4, find f(6).

If f(x) = 4x + 4, find f(6).

A.

25

B.

28

✓ Correct
C.

31

D.

26

Detailed Explanation

Choice B is the best answer. f(6) = 4(6) + 4 = 24 + 4 = 28

Why others are wrong:
A: 25 is incorrect because it does not satisfy the equation.
C: 31 is incorrect because it does not satisfy the equation.
D: 26 is incorrect because it does not satisfy the equation.