Set 2: Linear Functions (Beginner)

**Choice D is the best answer.** f(8) = 2(8) = 16

Explanation

Answer: D

PROBLEM

If f(x) = 2x, find f(8).

✓ Correct

Detailed Explanation

Choice D is the best answer. f(8) = 2(8) = 16

Why others are wrong:

A: 18 is incorrect because it does not satisfy the equation.

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

C: 6 is incorrect because it does not satisfy the equation.