## Intermediate Algebra (12th Edition)

Published by Pearson

# Chapter 2 - Section 2.6 - Function Notation and Linear Functions - 2.6 Exercises - Page 203: 62

#### Answer

$\text{Domain: } (-\infty,\infty) \\\text{Range: }\{ -2.5\}$

#### Work Step by Step

$\bf{\text{Solution Outline:}}$ To graph the given constant function, $f(x)=-2.5 ,$ draw a horizontal line that passes through the $y$-value of $5 .$ Then use the graph to identify the domain and range of the function. $\bf{\text{Solution Details:}}$ The graph of constant functions, $f(x)=c$ where $c$ is a constant, is a horizontal line that passes through the $y$-value of $c.$ Hence, the graph of the given function is a horizontal line that passes through the $y$-value of $-2.5 .$ Based on the graph the domain and range are as follows: \begin{array}{l}\require{cancel} \text{Domain: } (-\infty,\infty) \\\text{Range: }\{ -2.5\} .\end{array}

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