Question: 4. Consider the following all-integer LP model Maximize P=6x1-9x2 subject to: 4x1+5x220 4x1+4x20 and integer A. Graph the constraints and use dots to indicate all

4. Consider the following all-integer LP model

4. Consider the following all-integer LP model Maximize P=6x1-9x2 subject to: 4x1+5x220 4x1+4x20 and integer A. Graph the constraints and use dots to indicate all feasible integer solutions. B. Find the optimal solution to the LP Relaxation (meaning: solve it our "usual" way). Round down to find a feasible integer solution. C. Now that you've found the optimal integer solution, check again using the integer values found in part B to make sure it remains the optimal solution. If it does, say so. If it does not, state the actual optimal solution

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