Lesson 2: Exponential Equations

Focus

Are you saving money for something special? People save money for many reasons, like for a new computer, post-secondary school, a new car, or a home. People can invest money in a bank or investment firm. You can calculate how much money you will save using formulas based on exponential equations.

In Lesson 1 you looked at graphing exponential functions. In this lesson you will look at how to solve exponential equations.

Lesson Outcomes

At the end of this lesson you will be able to

• determine the solution of an exponential equation in which the bases are powers of one another
• solve problems that involve loans, mortgages, and investments

Lesson Question

You will investigate the following question:

• How can exponential equations be used to solve problems involving growth and decay?

Assessment

Your assessment may be based on a combination of the following tasks:

• completion of the Lesson 2 Assignment (Download the Lesson 2 Assignment and save it in your course folder now.)
• course folder submissions from Try This and Share activities
• additions to Glossary Terms