Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 7 - Functions and Graphs - 7.2 Domain and Range - 7.2 Exercise Set - Page 459: 62

Answer

Here is a counterexample: Let $f(x)=1$, and the let domain of f be $\{0,1,2\}.$ The graph of f is the set $\{(0,1), (1,1),(2,1)\}$. So, we could have described the function with the set of ordered pairs. The range, the set of second coordinates, is $\{1\}$ and has one element, while the number of ordered pairs is three. Thus, Chloe is not correct.

Work Step by Step

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