- Graph and clearly identify the feasible region - Label each constraint - Graph and label two iso-cost lines, and clearly identify the improving direction - Identify the optimal solution, the objective function value, and the constraints that are binding at the optimal solution (if no optimal solution exists, indicate if the problem is infeasible or unbounded)

Solve using the graphical solution method min 2x1 - 2x2 s.t. 3x1 + 6x2 > 18 x1 + x2 0