Thomas' Calculus 13th Edition

Published by Pearson
ISBN 10: 0-32187-896-5
ISBN 13: 978-0-32187-896-0

Chapter 1: Functions - Practice Exercises - Page 37: 42

Answer

See the graph below. Applying the absolute value to $ f_1$ has no effect; $ f_1$ and $f_2$ are identical.
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Work Step by Step

Given above.
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