Answer
0; The slope is 0, so the line is horizontal.
Work Step by Step
The equation for the slope of a line is:
$$m=\frac{y_2-y_1}{x_2-x_1}=\frac{3-3}{-7-5}=0$$
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 3 Linear Systems and Matrices - 3.4 Solve Systems of Linear Equations in Three Variables - 3.4 Exercises - Mixed Review - Page 185: 58
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