Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 8 Rational Functions - Extension - Solve Rational Inequalities - Practice - Page 600: 4

Answer

$x>-2$

Work Step by Step

Set $y=\frac{10}{x+2}$ and create a table of values of $x$ and $y$ for some values of $x$. The solution to the inequality is the values of $x$ which satisfies $y>0$. $\begin{matrix} \hline x&y\\ \hline -4&-5.0\\ -3&-10.0\\ -2&\text{Error}\\ -1&10.0\\ 0&5.0\\ 1&3.3\\ \hline \end{matrix}$ In the table, we get $y<0$ for $x<-2$ and $y>0$ for $x>-2$. Thus, the solution to the inequality is $x>-2$.
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