Intro to Logarithms Page 1 of 3
Accompanying Resources: Study Guide, Task Cards, Google Drive Activity Review of InversesBefore we talk about logarithms, let's do a quick review of inverses. Inverse operations are operations that "undo" each other. For example, addition and subtraction are inverses. If you add 5, you can easily undo that by subtracting 5. Multiplication and division are also inverses. If you multiply a number by 3, you can undo that by dividing by 3.

LogarithmsSo what's a logarithm? It's an operation that will undo an exponent. Logarithms are the inverses of exponential functions. Why the funny name? You'll have to ask John Napier  he came up with the name back in the 1600s. We use logarithms to go backwards and solve an exponential equation. They help us figure out this type of problem:

