College Algebra 7th Edition

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

Chapter 1, Equations and Graphs - Chapter 1 Review - Exercises - Page 171: 98


$(-\infty,\ -1] \cup\ [6,\ \infty)$

Work Step by Step

We see from the graph that the equation $y=x^{2}-4x$ lies above (i.e. is greater than) the equation $y=x+6$ for $-\infty\lt x\lt 1$ and $6\lt x\lt \infty$, i.e. $(-\infty,\ -1] \cup\ [6,\ \infty)$.
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