Consider this LP formulation
minimize cost = $X + 2Y
subject to: X + 3Y ≥ 90
8X + 2Y ≥ 160
3X + 2Y ≥ 120
Y ≤ 70
X, 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?