SAT Subject Test Math Level 2 Practice Test: Inverses Function

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Question 4 questions

Time 5 minutes

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1. If f(x) = 2x - 3, the inverse of f, f -1, could be represented by

A. f-1(x) = 3x - 2
B.
C.
D.
E.

2. If f(x) = x , the inverse of f, f -1, could be represented by

A.
B.
C.
D.
E. f -1 does not exist

3. The inverse of f = {(1,2),(2,3),(3,4),(4,1),(5,2)} would be a function if the domain of f is limited to

A. {1,3,5}
B. {1,2,3,4}
C. {1,5}
D. {1,2,4,5}
E. {1,2,3,4,5}

4. Which of the following could represent the equation of the inverse of the graph in the figure?

A. y = -2x + 1
B. y = 2x + 1
C.
D.
E.