Get "Using the TI84 Plus" here: http://amzn.com/dp/1617293156 or http://manning.com/mitchell3 | Learn to use your TI84 Plus CE (or other TI84 Plus calculator) for basic graphing. You'll create your first graph, find a point of intersection, and learn to zoom, set a window, format your graph, and much more. Read "Using the TI84 Plus", chapter 3, for more information.