In our last post, we looked at some questions involving functions, specifically functions involving money. Today, we’re going to continue our discussion with a look at how functions can be manipulated.

First of all, remember that evaluating functions involves simply plugging information in. For example, if f(x) = x + 1, then f(2) = 2 + 1 = 3.

The rules of function math are pretty simple: Treat the function like you would any other variable. Let’s jump in with a question: