College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 2, Functions - Chapter 2 Review - Exercises - Page 270: 100


No inverse (fails horizontal line test).

Work Step by Step

We know that $f$ does not have an inverse because it fails the horizontal line test. A horizontal line would pass it in more than one point, so it is not a one-to-one function (does not have have unique $x$ values for each $y$ value).
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