## Intermediate Algebra for College Students (7th Edition)

Published by Pearson

# Chapter 2 - Section 2.4 - Linear Functions and Slope - Exercise Set: 19

#### Answer

slope = $0$ The line through the points is horizontal.

#### Work Step by Step

RECALL: The slope of the line that passes through the points $(x_1, y_1)$ and $(x_2, y_2)$ is given by the formula: $m=\dfrac{y_2-y_1}{x_2-x_1}$ Solve for the slope of the line that passes through the two given points using the formula above to obtain: $m=\dfrac{5-5}{-1-(2)}=\dfrac{0}{-3}=0$ A line with a slope of zero is horizontal.

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