Question: Question 1a: (20 pts) Solve the following linear programming model graphically. max Z = 7x: + 4x2 subject to 2x + x2 = 120 x1

Question 1a: (20 pts) Solve the following linear programming model graphically. max Z = 7x: + 4x2 subject to 2x + x2 = 120 x1 + x2 S 100 4x, + x, S 120 *],X, 20 Interpret the change in the optimal point, if the objective function coefficient of X2 decreases to 3

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