Functions are mathematical entities that assign unique outputs to given inputs. Sounds simple? Think again! In this topic you will evaluate, graph, analyze, and create various types of functions.

Make a first introduction to functions.

Understand the subtle differences and similarities between functions and equations. In this exercise, we will see how an equation can be turned into a function.

Learn about features of functions that have distinct graphical representations: intervals where the function is always positive or always negative, and intervals where the function is always increasing or always decreasing.