Answer
3
Work Step by Step
For the slope to be undefined, we know that x must not be changing while y is changing. The x point in the first point is 3. Thus, for x not to change, the second x point must be 3.
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 5 - Linear Functions - 5-1 Rate of Change and Slope - Practice and Problem-Solving Exercises - Page 299: 47
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