Algebra: A Combined Approach (4th Edition)

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

Chapter 3 - Section 3.1 - Reading Graphs and the Rectangular Coordinate System - Exercise Set: 59

Answer

a. $x=1, y=5.59$ $x=3, y=5.99$ $x=5, y=6.39$ b. $2005$ c. $2013$

Work Step by Step

a. $y=0.2x+5.39$ $y=0.2(1)+5.39$ $y=0.2+5.39$ $y=5.59$ $y=0.2(3)+5.39$ $y=0.6+5.39$ $y=5.99$ $y=0.2(5)+5.39$ $y=1+5.39$ $y=6.39$ b. $y=0.2x + 5.39$ $6.4=0.2x+5.39$ $1.01=0.2x$ $x\approx5$ $2000+5=2005$ c. $y=0.2x + 5.39$ $8=0.2x+5.39$ $2.61=0.2x$ $x\approx13$ $2000+13=2013$
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