Problem 2 (40 points) Chapter 19 2. Solve the problem below using graphical linear programming and answer the questions that follow. Use simultaneous equations to determine the optimal values of the decision variables. Maximize Z=4x1 + 3x2 Subject to: Material 6x1 +4x2 48 lbs Labor 4x1 + 8x2 0 (1) What are the optimal values of the decision variables and Z? (2) Do any constraints have (nonzero) slack? If yes, which one(s) and how much slack does each have? (3) Do any constraints have (nonzero) surplus? If yes, which one(s) and how much surplus does each have? (4) Are any constraints redundant? If yes, which one(s)? Explain briefly