College Algebra (6th Edition)

by Blitzer, Robert F.

Published by Pearson

ISBN 10: 0-32178-228-3

ISBN 13: 978-0-32178-228-1

Chapter 2 - Functions and Graphs - Exercise Set 2.6 - Page 297: 5

Answer

$(-∞,∞)$

Work Step by Step

Since no number can make this function undefined, the domain includes all real numbers. $f(x)=x^2-2x-15$ $f(x)=(x+3)(x-5)$ $(-∞,∞)$

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