The binding constraints for this problem are the first and second. Min X1 + 2x2 s.t. + + X1 + x2 2 300 2x1 + x2 > 400 2x1 + 5x2 = 750 X1, X220 a. Keeping c2 fixed at 2, over what range can c1 vary before there is a change in the optimal solution point? b. Keeping c1 fixed at 1, over what range can c2 vary before there is a change in the optimal solution point? C. If the objective function becomes Min 1.5x1 + 2x2, what will be the optimal values of X1, X2, and the objective function? d. If the objective function becomes Min 7x1 +6x2, what constraints will be binding? Find the dual price for each constraint in the original problem. e