Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 1 - Mid-Chapter Check Point - Page 229: 27


See the graph below:

Work Step by Step

The graph of the equation, $y=-2x$ is the straight line that passes through the origin and passes through the points $\left( -1,2 \right),\left( 0,0 \right),\left( 1,-2 \right)$. And after comparing the equation $y=-2x$ with $y=mx+c$, we see that the slope is $m=-2$. The arrows on the left and the right of the curve indicate that that it extends indefinitely in both directions.
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