[SOLVED] Optimization Using Differentiation I have an assignment in which we are to optimize problems using a given 6-step process. More or less it involves Max/Min differentiation. On of the problems are as follow; Enclosing the Largest Area The owner of the Rancho Los Feliz has 3000 yd of fencing material to enclose the rectangular piece of grazing land along the striaght portion of a river. If fencing is not required along the river, what are the dimensions of the lagrgest area that the he can enclose? What is the area? I under stand that... a=xy p=2x+2y i understand one of the sides can be added to the other 3 sides, however, i'm not sure how to make this a function.