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y-3=-2(x-4)
y=-2x + 8 +3
y=11-2x atau 2x+y-11=0
melalui titik (4,3) = (x1,y1)
gunakan rumus (y - y1) = m (x - x1)
langsung masukin ke rumus
(y - 3) = -2 (x - 4)
(y - 3) = -2x + 8
2x + y - 11 = 0