Lesson 2 Summary

 

In this lesson you explored how to solve exponential equations.

 

You learned that when there is a single power on each side of the equal sign and the bases are the same, the exponents are equal. You needed to change the bases of the powers to a common base for some questions.

 

Another method was to guess and check. This method was useful when the bases could not be changed to a common base.

 

You can use substitution or graphing to check or verify your solution.

 

You explored how the compound interest formula could be used to determine how long you would need to invest money in order to have the money grow to a certain amount.

 

In future lessons you will learn an algebraic method for solving exponential equations when the bases do not share a common base.