5. For a certain differentiable function F of two variables z and y, its partial derivatives are Fx(x,y) = r²-y-4 and Fy(x,y) = -x+y-2. Find each of the critical points of F, and classify each as a local maximum, local minimum, or a saddle point. 6. Determine all critical points of 1 T(x, y) = 48+ 3xy - r²y - zy² and classify each as a local maximum, local minimum, or saddle point.

Repeat the instruction of Exercise 11 for the function. f(x)=x3+x For part d, use i. a1=0.1 ii a1=0.1 11. Consider the function f(x)=4x2(1x) a. Find any equilibrium points where f(x)=x. b. Determine the derivative at each of the equilibrium points found in part a. c. What does the theorem on the Stability of Equilibrium points tell us about each of the equilibrium points found in part a? d. Find the next four iterations of the function for the following starting values. i. a1=0.4. ii. a2=0.7 e. Describe the behavior of successive iteration found in part d. f. Discuss how the behavior found in part d relates to the results from part c.