Answer
undefined slope
Work Step by Step
m is the slope of the line.
$m=\frac{\triangle y}{\triangle x}=\frac{y_2-y_1}{x_2-x_1}=\frac{-1-(-2)}{1-1}=\frac{1}{0}$
The denominator is $0$ therefore the slope is undefined. ( The line is vertical)
Finite Math and Applied Calculus (6th Edition)
by Waner, Stefan; Costenoble, Steven
Published by
Brooks Cole
ISBN 10:
1133607705
ISBN 13:
978-1-13360-770-0
Chapter 1 - Section 1.3 - Linear Functions and Models - Exercises - Page 90: 45
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