please provide answers without photo

6.2. (Problem 6.1 continued) (a) For each of the sets of inequations, graph the following lines, indicat- ing their maximum and minimum values: (1) Z = X1+ X2 (2) Z =3X1 +4X2 (3) Z= 2X- X2 (b) Convert each of the sets of inequations to the equality equivalent form and find all basic solutions. Indicate which of the solutions are feasible