Functions — act-dog

Mathematics Preparing for Higher Math · Functions Q45

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Question 45 as printed in the ACT Practice Test 2 booklet — As printed in the official booklet.

Given that f (x) = √ 2x − 1 , which of the following −1 expressions is the inverse function, f (x) ? _ 1

A
_ √ 2x − 1 _ 3 x + 1 √ _
B
_ x + 1
C
D
(2x − 1) STOP! DO

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