(a) Use graphical analysis to identify all the corner-point solutions for this model. Label each as either feasible or infeasible. (b) Calculate the value of the objective function for each of the CPF solutions. Use this information to identify an optimal solution. (c) Use the solution concepts of the simplex method given in Sec. 4.1 to identify which sequence of CPF solutions might be examined by the simplex method to reach an optimal solution. (Hint: There are two alternative sequences to be identified for this particular model.)

(d)Determine the values of investment amount (alternative values for $12,000) that will render the investment constraint redundant.

8 (0,63 6 (5,5) Level of Activity 2 (6,4) Feasible region 2 (8,0) 0 2 8 4 6 Level of Activity 1 The objective is to maximize the total profit from the two activi- ties. The unit profit for activity 1 is $1,000 and the unit profit for activity 2 is $2,000. 8 (0,63 6 (5,5) Level of Activity 2 (6,4) Feasible region 2 (8,0) 0 2 8 4 6 Level of Activity 1 The objective is to maximize the total profit from the two activi- ties. The unit profit for activity 1 is $1,000 and the unit profit for activity 2 is $2,000