Answer
-1
Work Step by Step
(1, -1) and (2, -2)
x1=1, y1=-1,x2=2,y2=-2
Using slope formula
m = $\frac{y2-y1}{x2-x1}$
m= $\frac{-2-(-1)}{2-1}$ =$\frac{-1}{1}$ =-1
Elementary Geometry for College Students (6th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
9781285195698
ISBN 13:
978-1-28519-569-8
Chapter 10 - Section 10.2 - Graphs of Linear Equations and Slope - Exercises - Page 450: 11c
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