Question 1
The feasible region in the diagram below is consistent with which one of the following constraints?

◦ 8X1 + 4X2 ≥ 160
◦ 8X1 - 4X2 ≤ 160
◦ 4X1 - 8X2 ≤ 160
◦ 8X1 + 4X2 ≤ 160
◦ 4X1 + 8X2 ≤ 160
Question 2
An iso-profit line
◦ is a line with the same profit at all points.
◦ can be used to help solve a profit maximizing linear programming problem.
◦ is parallel to all other iso-profit lines in the same problem.
◦ all of the above.
◦ none of the above.