cussion Now that you have a better understanding of some of the math topics you've recently covered, take some time to think about these questions and then join the discussion to share your opinions. Jestions 1. Describe the difference between simple and compound interest. What types of functions are used to model both types of interest? 2. APR and APY are important concepts in this lesson. Describe the difference between the two. How does compound interest come into play? ections ck with your teacher for instructions on how to take part in the discussion