Answer
(a) 4
(b) 2
(c) 5
Work Step by Step
We plug in the $x$ values into the the piece of the graph whose interval includes that $x$ value:
(a) $f(-2)=(-2)^{2}=4$
(b) $f(0)=2$
(c) $f(2)=2(2)+1=5$
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 3 - Section 3.4 - Library of Functions; Piecewise-defined Function - 3.4 Assess Your Understanding - Page 244: 27
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