Answer
a. y=45,000 -5000x
b. 7 years
Work Step by Step
y= 45,000 -5000x
10000=45,000-5000x
-35000 = -5000x
x=$\frac{-35000}{-5000}$
x=7
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Section P.8 - Modeling with Equations - Exercise Set - Page 123: 8
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