### Home > PC > Chapter 7 > Lesson 7.3.2 > Problem 7-112

7-112.

Label the diagram.

Write an equation for the perimeter and the available 500 feet of fencing. Solve for *y*.

Write an equation for the area in terms of *x* and *y*.

Substitute the value of *y* from the perimeter equation into the area equation.

Use your calculator to graph the area function.

Where is the area the most?

What are the *x*- and *y*-values?

What is the maximum area?