Answer
$y=-5$
Work Step by Step
A rational function is undefined whenever the denominator equals 0. To make the function undefined, set $y+5$ equal to 0. We can easily see that the value that makes this true is $y = -5$.
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 6 - Rational Expressions and Equations - 6.1 Rational Expressions - 6.1 Exercise Set - Page 379: 11
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