Set 2: Function Notation (Beginner)

**Choice B is the best answer.** f(9) = 5(9) + 5 = 45 + 5 = 50

Explanation

Answer: B

PROBLEM

If f(x) = 5x + 5, find f(9).

✓ Correct

Detailed Explanation

Choice B is the best answer. f(9) = 5(9) + 5 = 45 + 5 = 50

Why others are wrong:

A: 52 is incorrect because it does not satisfy the equation.

C: 47 is incorrect because it does not satisfy the equation.

D: 53 is incorrect because it does not satisfy the equation.