Set 5: Function Notation (Intermediate)

**Choice D is the best answer.** f(11) = 2(11) + 4 = 22 + 4 = 26

Explanation

Answer: D

PROBLEM

If f(x) = 2x + 4, find f(11).

✓ Correct

Detailed Explanation

Choice D is the best answer. f(11) = 2(11) + 4 = 22 + 4 = 26

Why others are wrong:

A: 23 is incorrect because it does not satisfy the equation.

B: 24 is incorrect because it does not satisfy the equation.

C: 28 is incorrect because it does not satisfy the equation.