SAT Math Multiple Choice Practice Question 139: Answer and Explanation

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Question: 139

7.

The graph above represents f(x). If g(x) = 2f(x) - 3, then g(2) =

A. -5
B. -2
C. -1
D. 1
E. 5

Correct Answer: A

Explanation:

A. Looking at the graph tells you that f(2) = -1. So, by rule, g(2) = 2f(2) - 3 = 2(-1) - 3 = -5.

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