Extra Practice exercises are downloadable pages of additional practice exercises. Print out these worksheets, work through the exercises, then check your work against the answer page.

Now that you have practiced and you understand common graphs found in contemporary media, as well as the graphs of basic mathematical equations, refer back to page 139, the first page of Chapter 3, to review the application that considers the cost of mailing a package .

Here's your chance to explore the World Wide Web and practice your new skills at the same time. Visit the Web sites of some common mail service providers to learn about their package mailing prices and services.

After you've practiced and after you've explored, don't forget about your upcoming Chapter Test. Prepare for your exam by working through our Chapter 3 Review, and then check your answers. These free downloadable files are accessible by selecting the Chapter Review button at the top of this page.

Good luck!