Solve these problems using graphical linear programming and answer the questions that follow. Use simultaneous equations to determine the optimal values of the decision variables.
1)b.- Maximize Z= 2x1 + 10x2
Subject to Durability 10x1 + 4x2 ≥ 40 wk
Strength 1x1 6x2 ≥24 psi Time 1x1 + 2x2 ≤14 hr
x1, x2 ≥0