Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 8 - Section 8.1 - Review of Equations of Lines and Writing Parallel and Perpendicular Lines - Exercise Set - Page 575: 66

Answer

a) $y=-8000x+121000$ b) 89,000 employees

Work Step by Step

a) $(0, 121000)$ and $(2,105000)$ $m=(121000-105000)/(0-2)$ $m=16000/-2$ $m=-8000$ $y=mx+b$ $121000=0*-8000+b$ $121000=0+b$ $121000=b$ $y=-8000x+121000$ b) $y=-8000x+121000$ $2011-2007=4$ $y=-8000x+121000$ $y=-8000*4+121000$ $y=-32000+121000$ $y=89000$
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