Brandon John Grenier

This section provides an overview of linear functions and includes a practical example that you can work through. By the end of this section you should understand what a linear function is and have the ability to graph a linear function.

A **linear function** is a simple mathematical function whose graph is a straight line. You would have
certainly studied linear functions in high school, but in case it’s been a while this is a brief refresher on linear
functions, which takes the form: