Nilai maksimum fungsi objektif f (x, y) = 5x+10y dari sistem pertidaksamaan linier x+y<300; x+3y<750;x>0;y>0 adalah..

x + y = 300
x+ 3y = 750
----------------- -
-2y = -450
y = 225
x + y = 300
x + 225 = 300
x = 75
titik A (300,0) B (75,225) C (0,250)
f(300,0) = 5(300) + 10(0) = 1500
f(75,225) = 5(75) + 10(225) = 2625
f(0,250) = 5(0) + 10(250) = 2500
nilai maks 2625