=7-23 Consider this LP formulation:

Minimize cost subject to

= +

+ ≥

+ ≥

+ ≥

≤

$

, X Y X Y X Y X Y Y

X 2

3 90 8 2 160 3 2 120 70 Y ≥ 0 Graphically illustrate the feasible region and apply the isocost line procedure to indicate which corner point produces the optimal solution. What is the cost of this solution?