# Chapter 5 - Exponential and Logarithmic Functions - 5.2 One-to-One Functions; Inverse Functions - 5.2 Assess Your Understanding - Page 266: 15

not a one-to-one function

#### Work Step by Step

$y=200$ is paired with two different $x$ values: $25$ and $20$. Hence the function is not one-to-one.

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.