## Precalculus (10th Edition)

Published by Pearson

# Chapter 2 - Functions and Their Graphs - 2.1 Functions - 2.1 Assess Your Understanding - Page 57: 36

#### Answer

The equation does not define $y$ as a function of $x$.

#### Work Step by Step

$y =± \sqrt{ 1− 2x}$ If $x =0 , y = =± 1$ . This equation is not a function, since a distinct x-value corresponds to two different y-values.

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