The following Interactive Activity demonstrates the graph of another inverse proportion. Ms. Anwar is considering renting a house that has a large rectangular backyard. She wants to figure out if there will be room for her children's play equipment. The owner told her, "The backyard has an area of 2,000 square feet." Ms. Anwar thought about what he said and tried to imagine what the actual dimensions of the yard might be. In the Interactive Activity, you control one dimension of the yard, and the other dimension changes so that the area remains constant.
Note: You can also change the area of the yard (to 1,000 square feet) to see how this affects the dimensions.
This activity requires the Flash plug-in, which you can download for free from Macromedia's Web site. If you prefer, you can view the low-tech version of this
acivity, which doesn't require the Flash plug-in.