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9

Set 5: Linear Functions (Beginner)

Explanation

Answer: B

PROBLEM

If f(x) = 2x - 8, find f(10).

If f(x) = 2x - 8, find f(10).

A.

2

B.

12

✓ Correct
C.

18

D.

28

Detailed Explanation

Choice B is the best answer. f(10) = 2(10) - 8 = 12

Why others are wrong:
A: 2 is incorrect because it does not satisfy the equation.
C: 18 is incorrect because it does not satisfy the equation.
D: 28 is incorrect because it does not satisfy the equation.
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