6. Construct the simplex tableau for the following LPs, and find their optimal tableau, the optimal
solution and the optimal objective.
maximize z = x1 + x2,
subject to
8x1 + 6x2 ≤ 24,
2x2 ≤ 4,
x1 ≥ 0,
x2 ≥ 0.
maximize z = x1 + x2,
subject to
8x1 + 6x2 ≥ 24,
2x2 ≥ 4,
x1 ≥ 0,
x2 ≥ 0.
maximize z = x1 + x2,
subject to
5x1 + 3x2 ≤ 15,
3x1 + 5x2 < 15,
x1 ≥ 0,
x2 ≥ 0.