In this module you will solve problems in which two or more related variables change over time. Since the variables are related, their rates of change are also related. Therefore, if you are given one of the rates of change you should be able to find the other rate of change.

Lesson Index:

14.1 - The Ladder Problem

14.2 - The Ladder Problem With Gravity

14.3 - Two Ships

14. 4 - A Moving Particle

After completing this module, you should be able to do the following:

• Use the TI-89 to define functions with variables that change over time
• Differentiate these functions with respect to time
• Solve for related rates of change
• Model related rate problems parametrically