Use the parametric linear programming procedure for making systematic changes in the bi parameters to find an optimal solution for the following problem as a function of

, for 0

25.

Maximize Z(

)  2x1  x2, subject to x1 10  2 x1  x2 25 

x2 10  2 and x1 0, x2 0.

Indicate graphically what this algebraic procedure is doing.