College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 3 - Polynomial and Rational Functions - Concept and Vocabulary Check - Page 419: 3



Work Step by Step

Test values should always be selected from $inside$ the interval we wish to evaluate. In the case of this exercise, since the leftmost interval is $(-∞,-5)$, $-10$ is inside the interval and, thus, is an appropriate test value.
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