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 571: 37

Answer

The solution set is the region shaded GRAY .

Work Step by Step

$-2\leq x < 5$ means that $\left\{\begin{array}{ll} x\geq-2 & and\\ x<5 & \end{array}\right.$ , $\quad $simultaneously We will graph the solution region for each inequality. 1. (red) $x=-2 \quad $solid line ( sign is $\geq )$, ... a vertical line passing through ($-2,0$) Testing (0,0):$\quad 0 \geq-2 \quad ?$ Yes, shade the region containing (0,0) 2 (blue) $x=5 \quad $dashed line ( sign is $< )$, ... a vertical line passing through $(5,0) $ Testing (0,0):$\quad 0 < 5 \quad ?$ Yes, shade the region containing (0,0) The solution set is the region with BOTH shadings The solution set is the region shaded GRAY
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