PSAT Math Multiple-Choice Question 614: Answer and Explanation
Question: 614
If g(x) = 9x + 2, what does g(-4x) equal?
- A. -36x - 8
- B. -36x + 2
- C. 5x + 2
- D. -36x2 + 2
Correct Answer: B
Explanation:
(B) For this question, we simply plug in -4x for every x in the original function:
g(-4x) = 9(-4x) + 2 = -36x + 2
This answer matches choice (B).
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