Functions Modeling Change: A Preparation for Calculus, 5th Edition

Published by Wiley
ISBN 10: 1118583191
ISBN 13: 978-1-11858-319-7

Chapter 1 - Linear Functions and Change - 1.1 Functions and Function Notation - Exercises and Problems for Section 1.1 - Exercises and Problems: 8

Answer

Independent variable: $n$. dependent variable: $A$.

Work Step by Step

The number of gallons of paint $n$ represents an arbitrary input. Thereby, it is our independent variable. The area $f(A)$ of the walls is represented an arbitrary output. Since $f$ is a function describing the area in dependence on $A$, our dependent variable is $A$.
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