Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 4 - An Introduction to Functions - Get Ready - Page 231: 16


0 and -4

Work Step by Step

|r+2|=2 Split the equation into a positive and negative equation to get rid of the absolute value: -(r+2)=2 and (r+2)=2 Now solve each equation separately for r: -(r+2)=2 r+2=-2 r=-4 And (r+2)=2 r=0 Therefore, r is both -4 or 0
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