I'm in middle school Algebra 1 and my math teacher gave us a very detailed and complex explanation of the functions for graphing a quadratic function, but it was on a TI-83 original... I can't find the instructions to graph a quadratic function and find the vertex/ x-intercept points on the axis of symmetry. I heard that you can make a program to do it all in one step, but aside from clicking the program button and pressing "new program," I can't figure out how to do it. HELP!?!?!?!??!?!!?!?