Set 1: Function Notation (Beginner)

**Choice A is the best answer.** f(4) = 1(4) + 7 = 4 + 7 = 11

Explanation

Answer: A

PROBLEM

If f(x) = 1x + 7, find f(4).

✓ Correct

Detailed Explanation

Choice A is the best answer. f(4) = 1(4) + 7 = 4 + 7 = 11

Why others are wrong:

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

C: 9 is incorrect because it does not satisfy the equation.

D: 12 is incorrect because it does not satisfy the equation.