October 2018 1 152 Report
1.tentukan nilai optimum fungsi objektif dari setiap model matematika berikut menggunakan garis selidik.
a. Meminimumkan f(x,y)=7x-3y dgn kendala:
2x+y \leq 24 \\ x+2y \geq 12 \\ x-y \geq -2 \\ x \geq 0 \\ y \geq 0

b. memaksimumkan f(x,y)=4y+x dgn kendala:
3y-x \geq 12 \\ y-x \leq 20 \\ y+2x \geq 32 \\ y \leq 24
garis 3y-x=12 dan garis y+2x=32 berpotongan di titik(12,8)

tolong dijelaskan juga :)

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