The graphical method for solving LPP in two unknowns is as follows: 1)Graph the feasible region. 2)Compute the coordinates of the corner points. 3)Substitute the coordinates of the corner points into the objective function to see which gives the optimal value. 4)If the feasible region is bounded,this method can be misleading:optimal solutions always exist when the feasible region is bounded,but may or may not exist when the feasible region is unbounded.

if i ask you.........how?

cuz its only an approximation afterall

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