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x >= 0

(0,2) dan (8,0)
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(y - 2)/(0 - 2) = (x - 0)/(8 - 0)
8y - 16 = -2x
2x + 8y = 16
x + 4y <= 8

(0,6) dan (4,0)
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(y - 6)/(0 - 6) = (x - 0)/(4 - 0)
4y - 24 = -6x
6x + 4y = 24
3x + 2y >= 12