## Elementary Geometry for College Students (7th Edition)

Published by Cengage

# Chapter 10 - Section 10.2 - Graphs of Linear Equations and Slope - Exercises - Page 458: 12f

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#### Work Step by Step

(a,b) and (-b ,-a) x1=a,y1=b,x2=-b,y2=-a Using slope formula m = $\frac{y2-y1}{x2-x1}$ m= $\frac{-a-b}{-b-a}$ = 1

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