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Verified answer
Garis yg melalui (0,6) dan (10,0) :6x + 10y = 6 × 10
3x + 5y = 30
Garis yg melalui (0,-4) dan (2,0) :
-4x + 2y = (-4) × 2
-2x + y = -4
Sistem pertidaksamaan utk daerah yg diarsir
3x + 5y ≤ 30
-2x + y ≥ -4
x ≥ 0
y ≥ 0