6

Set 4: Function Notation (Intermediate)

Explanation

Answer: D

PROBLEM

If f(x) = 3x - 3, find f(3).

If f(x) = 3x - 3, find f(3).

A.

5

B.

8

C.

3

D.

6

✓ Correct

Detailed Explanation

Choice D is the best answer. f(3) = 3(3) - 3 = 9 - 3 = 6

Why others are wrong:
A: 5 is incorrect because it does not satisfy the equation.
B: 8 is incorrect because it does not satisfy the equation.
C: 3 is incorrect because it does not satisfy the equation.