College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 5 - Systems of Equations and Inequalities - Exercise Set 5.5 - Page 572: 70

Answer

$\left\{\begin{array}{l} -1 \leq x \leq 1 \\ -2 \leq y \leq 2 \end{array}\right.$ .

Work Step by Step

$|x| \leq 1\quad \Leftrightarrow\quad -1 \leq x \leq 1$ $|y| \leq 2\quad \Leftrightarrow\quad -2 \leq y \leq 2$ So the system is $\left\{\begin{array}{l} -1 \leq x \leq 1 \\ -2 \leq y \leq 23 \end{array}\right.$ Graphing: $-1 \leq x \leq 1 $ shade the region between lines $x=-1$ and $x=1$ (solid lines, since the inequality signs are $\leq$ ) $-2 \leq y \leq 2 $ shade the region between lines $y=-2$ and $y=2$ (solid lines, since the inequality signs are $\leq$ ) The solution set is the set with both shadings.
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