Set 2: Function Notation (Intermediate)

**Choice B is the best answer.** f(4) = 2(4) + 3 = 8 + 3 = 11

Explanation

Answer: B

PROBLEM

If f(x) = 2x + 3, find f(4).

✓ Correct

Detailed Explanation

Choice B is the best answer. f(4) = 2(4) + 3 = 8 + 3 = 11

Why others are wrong:

A: 8 is incorrect because it does not satisfy the equation.

C: 13 is incorrect because it does not satisfy the equation.

D: 10 is incorrect because it does not satisfy the equation.