Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 1 - Section 1.6 - Subtraction of Real Numbers - Exercise Set - Page 73: 128

Answer

$|-6|-|-8|\quad \lt \quad |-6-(-8)|\quad \lt|-6+(-8)|$ ( $|x|-|y|\quad \lt \quad |x-y|\quad \lt|x+y| $ )

Work Step by Step

$|-6-(-8)|=|-6+8|\qquad $subtracting = adding the opposite $=|2|$ $=2$ $|-6|-|-8|=6-8$ $=6+(-8)$ $=-2\qquad$ the negative number has greater absolute value. $|x+y|=|-6+(-8)|=|-14|=14$ $|-6|-|-8|\quad \lt \quad |-6-(-8)|\quad \lt|-6+(-8)|$ ( $|x|-|y|\quad \lt \quad |x-y|\quad \lt|x+y| $ )
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