This is about a 10.5 minute long video showing students how to identify functions in tables, coordinate pairs, mappings and graphs. This video gives the definition of a function and shows students several examples and non-examples of functions in each kind of visual representation. In the video, I discuss that with tables and lists of coordinate pairs you can check the x-values to make sure that none of them repeat, meaning that they would have two output values. I also discuss how to tell whe