Algebra: A Combined Approach (4th Edition)

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

Chapter 3 - Section 3.5 - Equations of Lines - Exercise Set - Page 255: 65

Answer

a) $y=-1000x+13000$ b) 9500 noodles

Work Step by Step

a) 3 dollars will sell 10000 noodles 5 dollars will sell 8000 noodles $m=(10000-8000)/(3-5)$ $m=2000/-2$ $m=-1000$ $y=mx+b$ $y=-1000x+b$ $10000 = -1000*3+b$ $10000 = -3000+b$ $13000 = b$ $y=-1000x+13000$ b) price is 3.50 $y=-1000x+13000$ $y=-1000*3.5+13000$ $y=-3500+13000$ $y=9500$
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