Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 1 - Graphs - 1.3 Lines - 1.3 Assess Your Understanding - Page 30: 19



Work Step by Step

The slope of the line can be determined by the equation: $m=\frac{y_2-y_1}{x_2-x_1}$, where x and y are the coordinates of the two given points. Here, we can substitute in the points $(-2,3)$ and $(2,1)$ $m=\frac{1-3}{2-(-2)}=\frac{-2}{4}=-0.5$ The graph is in the picture below.
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