The function has a name and a couple of braces to include the code that makes up the function. It technically works but it's not too useful. For it to do something, we have to add some code inside of ...

Visualizing Functions as Graphs. In the applet below is intended to help you understand the connection between the graph of a function and the function itself. Recall that a function can be thought of ...

In mathematics, a "well-defined" function is one where there is only 1 output for a given input (as a side note, you can have only single input functions, and still semantically get multiple ...