Solve the following LP formulation graphically. You can use either the isoprofit line or corner point approach:

Maximize Z= 40X1+ 50X2

s.t.

X1 + 2X2 <=40

4X1 +3X2 <=120

X1, X2 >= 0 Select one:

a. Z=2100, X1=30, X2=0

b. Z=400, X1=0, X2=20

c. Z=3000, X1=37.14, X2=20

d. Z=1360, X1=24, X2=8