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 - Page 202: 54

Answer

Point A: $y=-3x$ $y=-3(0)$ $y=0$ Point B: $y=-3x$ $y=-3(-2)$ $y=6$ Point C: $y=-3x$ $9=-3(x)$ $x=\frac{9}{-3}$ $x=-3$
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Work Step by Step

To find the coordinates of point A and B, substitute the given y-value into the equation $y=-3x$ to find the x-value for that corresponding y-value. To find the coordinates of point C, substitute the given x-value into the equation $y=-3x$ to find the y-value for that corresponding x-value. Plot points A, B and C on the graph given and draw a straight line that passes through all three points.
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