Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Section P.1 - Algebraic Expressions, Mathematical Models, and Real Numbers - Exercise Set - Page 17: 66



Work Step by Step

$\frac{|x|}{x}+\frac{|y|}{y}$ $x=2,y=-5$ $\frac{|2|}{2}+\frac{|-5|}{-5}= \frac{2}{2}+\frac{5}{-5}=1+-1=0$
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