Question: 3. Please follow these steps to do sensitivity analysis for the LP: max z = 10x1 + 2x2 s.t. 2x1 + x2 0 Its optimal


3. Please follow these steps to do sensitivity analysis for the LP: max z = 10x1 + 2x2 s.t. 2x1 + x2 0 Its optimal solution is x1 = 3, x2 = 0,= 0,52 = 6 and z = 30. The basis for this optimal solution is BV = {x1, S2}, NBV = {X2,51}, where S1,S2 are slack variables for first and second constraint, respectively. 3.1 (2 points) Write the standard form. 3.2 (8 points) Write all related matrices or vectors XBv, XNBV, CBV, Cnby, B, N, b and also compute B-1. 3.3 (7 points) Let cu be the coefficient for x in the objective function. Currently, C1 = 10. In what range if c changes (all other parameters stay the same), the current basis remains optimal? 3.4 (4 points) Based on the problem 3.3, if c = 9, what are the optimal solution for decision variables, and optimal objective value? 3.5 (6 points) Let by be the RHS of 1st constraint. Currently, b2 = 6. In what range if b changes (all other parameters stay the same), the current basis remains optimal? 3.6 (4 points) What are the shadow prices for the first two constraints of the original LP problem? 3.7 (4 points) Based on the problem 3.5 and the shadow price from problem 3.6, if b2 = 8, what are the optimal solution for decision variables and optimal objective value? 3. Please follow these steps to do sensitivity analysis for the LP: max z = 10x1 + 2x2 s.t. 2x1 + x2 0 Its optimal solution is x1 = 3, x2 = 0,= 0,52 = 6 and z = 30. The basis for this optimal solution is BV = {x1, S2}, NBV = {X2,51}, where S1,S2 are slack variables for first and second constraint, respectively. 3.1 (2 points) Write the standard form. 3.2 (8 points) Write all related matrices or vectors XBv, XNBV, CBV, Cnby, B, N, b and also compute B-1. 3.3 (7 points) Let cu be the coefficient for x in the objective function. Currently, C1 = 10. In what range if c changes (all other parameters stay the same), the current basis remains optimal? 3.4 (4 points) Based on the problem 3.3, if c = 9, what are the optimal solution for decision variables, and optimal objective value? 3.5 (6 points) Let by be the RHS of 1st constraint. Currently, b2 = 6. In what range if b changes (all other parameters stay the same), the current basis remains optimal? 3.6 (4 points) What are the shadow prices for the first two constraints of the original LP problem? 3.7 (4 points) Based on the problem 3.5 and the shadow price from problem 3.6, if b2 = 8, what are the optimal solution for decision variables and optimal objective value