College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 1 - Equations and Inequalities - Exercise Set 1.3 - Page 134: 25

Answer

a.) $ y = -3000x + 24000$ b.) After 5 years the car's value will be $9000 c.) See attached image. The blue point is the solution in part b.)
1529526938

Work Step by Step

$a.)\ m = \dfrac{y_{2} - y_{1}}{x_{2} - x_{1}} \longrightarrow -3000 = \dfrac{y - 24000}{x - 0} \longrightarrow -3000 = \dfrac{y-24000}{x} \longrightarrow -3000x = y -24000 \longrightarrow y = -3000x+24000$ $b.)\ 9000 = -3000x + 24000 \longrightarrow -3000x = 9000 - 24000 \longrightarrow x = \dfrac{-15000}{-3000} \longrightarrow x = 5$ After 5 years the car's value will be $9000
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.