Set 1: Linear Functions (Beginner)

**Choice A is the best answer.** f(6) = 4(6) = 24

Explanation

Answer: A

PROBLEM

If f(x) = 4x, find f(6).

✓ Correct

Detailed Explanation

Choice A is the best answer. f(6) = 4(6) = 24

Why others are wrong:

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

C: 30 is incorrect because it does not satisfy the equation.

D: 20 is incorrect because it does not satisfy the equation.