Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 2 - Graphs and Functions - 2.4 Linear Functions - 2.4 Exercises - Page 228: 40



Work Step by Step

If a roof has a pitch of $\bf\frac{1}{4}$, it $\bf{\text{rises }1ft}$ over a $\bf{\text{run of }4 ft}$ To find the length of the roof that $\bf{\text{rises }4ft}$, $$\frac{1}{4}=\frac{4}{x}$$ $$\frac{1}{4}*\frac{4}{4}=\frac{4}{\bf{16}}$$ The roof $\bf{\text{rises }4ft}$ over a $\bf{\text{run of }}$$\color{blue}{\bf{16\text{ft}}}$
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