Functions Modeling Change: A Preparation for Calculus, 5th Edition

Published by Wiley
ISBN 10: 1118583191
ISBN 13: 978-1-11858-319-7

Chapter 1 - Linear Functions and Change - 1.2 Rate of Change - Exercises and Problems for Section 1.2 - Skill Refresher - Page 14: S9



Work Step by Step

Simplifying the expression using the rules of Algebra, we find: $$\frac{x^2-\frac{3}{4}-\left(y^2-\frac{3}{4}\right)}{x-y} \\ \frac{x^2-y^2}{x-y} \\ \frac{\left(x+y\right)\left(x-y\right)}{x-y} \\ x+y$$
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