1.Solve the following linear model graphically to findoptimal values ofthe decision variables𝑥1and 𝑥2that maximize the objective function, z. (FYI, we designate the optimal objective function value as z* and the values of the decision variable that produce this 𝑥1∗and𝑥2∗.)Max𝑧=2𝑥1+𝑥2s.t.𝑥2≤103𝑥1+4𝑥2≤602𝑥1+𝑥2≤30𝑥1≤14𝑥1≥0,𝑥2≥02....