Graphics and Graphics 2 are both views of 2D coordinate plane. They can be used together and the objects in both views can be dynamically related.[br][br]The following is an example about visualizing the partial derivatives of a two-variable function.[br]

[b][u]Classwork[/u][/b]: In the 3D Graphics view, plot the graph of the function [math]f(x,y)=5-\frac 13 x^2 - \frac 14 y^2[/math]. Then plot a movable point in the Graphics view corresponding to the xy-plane and construct the tangent plane at the corresponding point on the graph.[br]