Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 4 - An Introduction to Functions - Cumulative Test Prep - Extended Response: 25

Answer

A: - Independent Variable: Number of Loads of Laundry - Dependent Variable: Number of Gallons used B - Function Rule: G=41$\times$L C - 13 Loads

Work Step by Step

We figured out the independent and dependent variable by understanding that the number of gallons used is dependent on the number of loads/washes. So, the number of gallons used is the dependent variable and the number of loads is the independent variable. We got the function rule by understanding that for each load, 41 gallons are used so we multiply 41 gallons with the number of loads to find out the total number of gallons used. In order to find the number of loads, we divide the total gallons used (533) by 41 since for each load, 41 gallons are used.
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