# Chapter 1 - Section 1.2 - Basics of Functions and Their Graphs - Exercise Set - Page 177: 59

$y$ is not a function of $x$

#### Work Step by Step

RECALL: If all vertical lines will pass through the graph in at most one point, then the graph represents $y$ as a function of $x$. Otherwise, the graph does not represent $y$ as a function of $x$. Notice that a number of vertical lines (such as x=0) will pass through the graph at two points. The graph fails the vertical line test. Thus, the given graph does not represent $y$ as a function of $x$.

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.