Answer
TRUE.
Work Step by Step
$y=x^2-1$ defines $y$ as a function of $x$, as there is only one value of $y$ for each $x$ of the domain.
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 - Concept and Vocabulary Check - Page 223: 4
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