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 - 7.1 Introduction to Function - 7.1 Exercise Set - Page 451: 70


They seem plausible

Work Step by Step

The graphs seem to make sense, for intimacy and commitment rise quickly at first and then level out, but they never go down. Interestingly, passion reaches a peak and then declines. This makes sense, for older people generally experience decreased sexual passion.
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