Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 1 - Section 1.4 - Linear Functions and Slope - Concept and Vocabulary Check: 5

Answer

zero

Work Step by Step

RECALL: Slope is rise over run. $\left(\dfrac{rise}{run}\right)$. A horizontal line has no $(zero)$ rise since the points all belong to the same horizontal line. Note that zero divided by any non-zero number is equal to zero. Thus, a horizontal line has a slope of zero.
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