# Chapter 4 - Inverse, Exponential, and Logarithmic Functions - 4.1 Inverse Functions - 4.1 Exercises - Page 417: 39

The given functions are not inverses of each other.

#### Work Step by Step

A function has an inverse function if it is one-to-one. The function $f$ is many -to-one since the first coordinates 2, 3, and 4 are all paired with the same second coordinate $5$. This means it has no inverse function. Thus, the given functions are not inverses of each other.

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