Max 5x1 + 5x2 s.t. 1x1 <= 100 1x2 <= 80 2x1 + 4x2 <= 400 x1, x2 >= 0 Sketch the feasible region. The number of corner points is Find the value of the objective at each corner point. The objective value of the optimal solution is Find the objective value of the optimal solution if the objective is changed to: Max 2x1 + 6x2 Write the L.P. model in Standard form. The number of slack variables in the model will be