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

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

Chapter 11 - Polynomial and Rational Functions - Exercises to Skills Review for Chapter 11 - Page 494: 16



Work Step by Step

Rewrite the fractions to get a common denominator. $$\frac{8y}{y-4}+\frac{32}{4-y}=\frac{8y}{y-4}-\frac{32}{y-4}$$ Since the fractions have the same denominator, they can be added to get $\frac{8y-32}{y-4}=\frac{8(y-4)}{y-4}=8$
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