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 θ, for 0 ≤ θ ≤ 25.
Maximize Z(θ) = 2x1 + x2,
Subject to


and
x1 ≥ 0, x2 ≥ 0.
Indicate graphically what this algebraic procedure is doing.