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4

Set 2: Function Notation (Intermediate)

Explanation

Answer: A

PROBLEM

If f(x) = 3x + 2, find f(12).

If f(x) = 3x + 2, find f(12).

A.

38

✓ Correct
B.

37

C.

36

D.

41

Detailed Explanation

Choice A is the best answer. f(12) = 3(12) + 2 = 36 + 2 = 38

Why others are wrong:
B: 37 is incorrect because it does not satisfy the equation.
C: 36 is incorrect because it does not satisfy the equation.
D: 41 is incorrect because it does not satisfy the equation.
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