Consider the following problem. Maximize z = -- X1 + 4x2
subject to
- 3x₂ + x₂ <= 6
X1 + 2x2 < = 4
X₂ >= -3
X1 urs
(a) Solve this problem graphically.

To keep cylindrical tanks from tipping over, a designer is planning to enlarge the original area of the base by 50%. the new tank should have the same volume as the original. how should the designer change the height of the tank? a: make it 50% taller than the height of the original tank. b: make it 6623% taller than the height of the original tank c: make it 3313% shorter than the height of the original tank d: make it 50% shorter than the height of the original tank.