Linear Programming
Create a slide show to show how the values of the objective function vary. Note that when you execute the following in Maple you can control the time spent at each location.
> LPanimate({2*x+y<=12,x+3*y>=6,x>=0,y>=0},x=0..12,y=0..12,3*x+4*y,[yellow,blue],[0,0,0,2,4,0,6,0,0,8,0,10,0,12,10,10]);