Bedanya nilai maksimum sama minimum apaan ya?? contoh soal 1. Nilai maksimum dari f(x,y)=10x+20y dengan kendala x_>0 ; y_>0 ; x+4y_<120 ; x+y_<60.... 2. Nilai minimum untuk 2x+5y dengan syarat x_>0 ; y_>0 ; x+y_>12 dan x+2y_>16 adalah....
Galladeaviero1) x+4y = 120 --> tik A (0, 30), B(120, 0) x+y = 60--> tik C (0,60), D (60,0) . x+4y = 120 x+y = 60 ....kurangkan 3y = 60--> y = 20, x = 40 -> tik E (40,20) titik pojok daerah HP , (0,0),(0,30), (40,20),(60,0) nilai f(x,y) = 10 x + 20 y (0,0)--> nilai = 0 (0,30)-> nilai = 20(30)= 600 (40,20)-> nilai= 10(40) + 20(20)= 8.00 (60,0) --> nlai = 10(60+ 0(0)= 600 maksimum = 600
x+4y = 120 --> tik A (0, 30), B(120, 0)
x+y = 60--> tik C (0,60), D (60,0)
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x+4y = 120
x+y = 60
....kurangkan
3y = 60--> y = 20, x = 40 -> tik E (40,20)
titik pojok daerah HP , (0,0),(0,30), (40,20),(60,0)
nilai f(x,y) = 10 x + 20 y
(0,0)--> nilai = 0
(0,30)-> nilai = 20(30)= 600
(40,20)-> nilai= 10(40) + 20(20)= 8.00
(60,0) --> nlai = 10(60+ 0(0)= 600
maksimum = 600