Add link - Find an article from a magazine or newspaper that mentions a rate of change. You may look on the Internet, or in any newspaper, magazine, or trade journal. You may not use an example from any math textbook or any website designed to explain math. I want to see a real-life rate of change!

In your post, you should include:

1. A copy of the article with complete source information. Clearly identify the part of the article that mentions the rate of change.

2. Write sentence or two telling what rate of change this is and how you know it is a rate of change. What are the units?

3. Is the function linear? That is, is the rate of change constant?