## Precalculus (6th Edition) Blitzer

Published by Pearson

# Chapter 1 - Mid-Chapter Check Point - Page 228: 1

#### Answer

Not a function Domain = $\left\{1, 2\right\}$ Range = $\left\{-6, 4, 6\right\}$

#### Work Step by Step

The first coordinate $2$ is paired with two different second coordinates, therefore the relation is NOT a function. The domain is the set that contains the first components so: Domain = $\left\{1, 2\right\}$ The range is the set that contains all the second components so: Range = $\left\{-6, 4, 6\right\}$

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