This sketch is a simple look at the vertex form of a quadratic function. The sliders control the paramenters.[br][br]1) Play with the controls, and describe what a, h and k control about the function.[br][br]2) See it you can predict the vertex, the y-intercept or the x-intercepts for your function.[br][br]3) Try entering a standard form in the input bar and see if you can match the vertex form.

Posted at the GVSU GeoGebra Site: http://bit.ly/GGBquick