1

Set 3: Linear Functions (Intermediate)

Explanation

Answer: D

PROBLEM

If f(x) = -2x + 8, find f(3).

If f(x) = -2x + 8, find f(3).

A.

22

B.

14

C.

-2

D.

2

✓ Correct

Detailed Explanation

Choice D is the best answer. f(3) = -2(3) + 8 = 2

Why others are wrong:
A: 22 is incorrect because it does not satisfy the equation.
B: 14 is incorrect because it does not satisfy the equation.
C: -2 is incorrect because it does not satisfy the equation.