Answer
See the graph below.
Applying the absolute value to $ f_1$ reflects half of the function ($ x\lt0$) around the x-axis, which is the same as reflecting half of the function ($ x\geq0$) around the y-axis.
Work Step by Step
Given above.
Thomas' Calculus 13th Edition
by Thomas Jr., George B.
Published by
Pearson
ISBN 10:
0-32187-896-5
ISBN 13:
978-0-32187-896-0
Chapter 1: Functions - Practice Exercises - Page 37: 48
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