Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 1 - Linear Functions - 1.7 Functions and Function Notation - 1.7 Exercises - Page 106: 4


w is the input with ounces as units. P is the output with dollars as the units. This is a function.

Work Step by Step

We know that w is the input because it is inside the parentheses. P is the output because it is the 'coefficient' of the parentheses. The units of ounces and dollars are both given in the problem. This is a function because every different weight of a package can only have one corresponding price.
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