College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter 2 - Section 2.4 - Linear Equations - 2.4 Exercises - Page 212: 33


A, C, D, and E

Work Step by Step

Since the walkway rises 2.5 vertically for every 10 ft on the horizontal, the slope must be: $slope=\frac{rise}{run}=\frac{2.5}{10}=\frac{1}{4}=0.25=25\%$ Thus all of these are correct answers: A ($0.25$), C ($\frac{2.5}{10}$), D ($25\%$), and E($\frac{1}{4}$).
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