Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 1 - Linear Functions - 1.3 Fundamentals of Graphing and Slope - 1.3 Exercises - Page 51: 17



Work Step by Step

The equation to graph by plotting 3 points is $y=0.5x-3$ This explanation will plug in -2,0, and 2 for x, but any 3 numbers can be used: $y=0.5(-2)-3$$=-4$ $y=0.5(0)-3$$=-3$ $y=0.5(2)-3$$=-2$ These three solutions provide an x and y-coordinate for each point. The numbers substituted for x will be the x-coordinates and the solutions to that will be the y-coordinates: $(−2,-4)$, $(0,−3)$, and $(2,−2)$.
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