Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 3 - Section 3.7 - Graphing Linear Inequalities - Exercise Set - Page 188: 66

Answer

$\text{Domain: } (-\infty,-2)\cup(2,\infty) \\\text{Range: } (-\infty, \infty) \\\text{The graph is a function.} $

Work Step by Step

A vertical line drawn anywhere will intersect the given graph in at most 1 point. The $x-$values of the given graph are all the numbers negative numbers up to $-2$ and from $2$ and above. The $y-$values are all the numbers. Hence, the given graph has the following characteristics: \begin{array}{l}\require{cancel} \text{Domain: } (-\infty,-2)\cup(2,\infty) \\\text{Range: } (-\infty, \infty) \\\text{The graph is a function} .\end{array}
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