Question: A linear programming model is given as follows: Minimize ? = 8? 1 + 6? 2 Subject to 4? 1 + 2? 2 20 6?

A linear programming model is given as follows: Minimize ? = 8? 1 + 6? 2 Subject to 4? 1 + 2? 2 20 6? 1 + 4? 2 12 ? 1 + ? 2 6 ? 1 , ? 2 0 Define the feasible solution area and obtain the optimal solution graphically If the coefficient of ? 2 in the objective function decreases to 4, what effect will be? If the second constraint, 6? 1 + 4? 2 12, is removed from the given model, what effect will be? \

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