Chapter 4 - An Introduction to Functions - 4-6 Formalizing Relations and Functions - Practice and Problem-Solving Exercises - Page 272: 23

The reasonable domain for the function V(c)=98c would be 16 cups of milk and the range would be 1568 IUs of Vitamin D . The graph is shown below in the screenshot.

The reasonable domain for the function V(c)=98c would be 16 cups of milk and the range would be 1568 IUs of Vitamin D because one cup of milk has 98 IUs of Vitamin D and you have a 16 cup jug of milk. Therefore the domain for the function is from 0 to 16 cups because 0 is the minimum amount of cup the jug can hold and 16 is the maximum amount of cups the jug can hold. The range is from 0 to 1568 IUs of Vitamin D because the you can get 0 IUs when 1 cup of milk used and can get 1568 IUs of Vitamin D when 16 cups of milk in a jug. V(16)=98(16) = 1568 Its of Vitamin D.