The function is the revenue function for selling widgets and gizmos with demand price functions To solve this problem, rename QuantityGizmos to x and Quantity Widgets y. This will make using Wolfram Apha slightly easier, and symbol manipulation a tad more straight forward. a. Find the revenue function. Revenue(x,y)= b. Find the partial derivatives of the original function. Revenue x(x,y)= Revenucy(x,y)= c. Find the critical points. Format your answer like (x1,y1)) d. Produce a small graph around the critical point. Submit your graph to your instructor. e. Determine if the critical point is a maxima, minima, or saddle point