Lesson 2
1. Lesson 2
1.13. Lesson 2 Summary
Module 7: Exponents and Logarithms
Lesson 2 Summary
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In this lesson you explored how to solve exponential equations.
One method you studied was writing equivalent powers with the same base on both sides of the equal sign. Thus, the exponents are equivalent and you can then solve for an unknown exponent.
A second method was to solve using a graph. You graphed a system of equations and determined the solution by finding the x-value of the point of intersection of the two functions.
You explored how the compound interest formula could be used to determine how long you would need to invest money to have it grow to a certain amount or how long it would take to pay off a loan.
In future lessons you will learn an algebraic method of solving exponential equations when bases are not the same. In Lesson 3 you will explore the connection between exponential form and logarithmic form.