## College Algebra (6th Edition)

Published by Pearson

# Chapter 2 - Functions and Graphs - Concept and Vocabulary Check: 5

FALSE.

#### Work Step by Step

$y=\frac{+}{-}\sqrt {x^2-1}$ does not define $y$ as a function of $x$, as the plus/minus sign in front of the square root signifies that in many occasions two values of the range will correspond to any single value of the domain.

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