Exam

ISEE Upper Level

Section

Difficulty

Mathematics Achievement

Finding the Inverse Function

Medium Algebra Functions

Consider the function defined by the equation:

$$ f(x) = 3x - 2 $$

Which of the following expressions represents the inverse function $$ f^{-1}(x) $$?

A

$$ f^{-1}(x) = \frac{x + 2}{3} $$

B

$$ f^{-1}(x) = 3x + 2 $$

C

$$ f^{-1}(x) = \frac{x - 2}{3} $$

D

$$ f^{-1}(x) = -3x + 2 $$

Hint

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