### Home > PC > Chapter 7 > Lesson 7.2.2 > Problem 7-57

7-57.

If varies inversely as

*and*

*when*

*, complete the following problems.*

Express

*y*as a function of,.If

varies inversely as , then . Use the fact that

whento solve for.Substitute

back into your original equation.

To writeas a function of, changeto.Find

,,, and .