5. Can be drawn straight 1 and the straight 2:
3- The joint solution, an area ( A B C D ) shaded.
The objective function is tested at these points, ( A B C D )
8. (1) Transfer restrictions to equation as follows:
The straight (1) 2 X1 +3 X2 =24
The straight (2) 2 X1 + X2 =16
The straight (3) X1 =7
The straight (4) X2 =6