Answer
8
Work Step by Step
The equation for the slope of a line is:
$$m=\frac{y_2-y_1}{x_2-x_1}$$.
Thus, plugging in the given points, we obtain:
$$m=\frac{-7-9}{2-4}=8$$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 4 Quadratic Functions and Factoring - 4.8 Use the Quadratic Formula and the Discriminant - 4.8 Exercises - Mixed Review - Page 299: 75
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