Set 4: Linear Functions (Beginner)

**Choice A is the best answer.** f(4) = 4(4) + 2 = 18

Explanation

Answer: A

PROBLEM

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

✓ Correct

Detailed Explanation

Choice A is the best answer. f(4) = 4(4) + 2 = 18

Why others are wrong:

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

C: 14 is incorrect because it does not satisfy the equation.

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