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2

Set 4: Linear Functions (Beginner)

Explanation

Answer: B

PROBLEM

If f(x) = 2x + 10, find f(5).

If f(x) = 2x + 10, find f(5).

A.

15

B.

20

✓ Correct
C.

12

D.

25

Detailed Explanation

Choice B is the best answer. f(5) = 2(5) + 10 = 20

Why others are wrong:
A: 15 is incorrect because it does not satisfy the equation.
C: 12 is incorrect because it does not satisfy the equation.
D: 25 is incorrect because it does not satisfy the equation.
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