T4-T) Find the optimal solution of the following LP models. (Use Geogebra) Write your LP model. Maximize z = 15x1 + 20x2 subject to: x1 + 2x2 ≥ 10 2x1 - 3x2 ≤ 6 x1+ x2 ≥ 6 x1,x2 ≥ 0 (Use Geogebra) Determine the feasible region and label the coordinates of the

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