Find a maximum value for the scenario.

The design of a rectangular pool calls for a perimeter of

## Step 1

Click anywhere in ClassPad to bring up the ClassPad menu.

Select the **Graphing** tool in ClassPad.

## Step 2

Select the functions tool at the bottom of the graphing window.

## Step 3

Enter the equation that represents the area of the pool.

*You may need to change the graph scales or scroll to zoom out to better view the graph of the equation.*

## Step 4

Click on the graph to reveal key points. Click on the highest point. What is the maximum surface area?

## Step 5

Open the table for the function. Add higher