Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 7 - Algebra: Graphs, Functions, and Linear Systems - 7.1 Graphing and Functions - Exercise Set 7.1 - Page 418: 58


$y$ is not a function of $x$

Work Step by Step

RECALL: If all vertical lines pass through the graph one time at the most, then the graph represents $y$ as a function of $x$. Notice that one vertical line (the line itself) will pass through the graph at infinitely many points. Thus, the given graph does not represent $y$ as a function of $x$.
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