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y = 3-2x
m = 2
turunan kurva y sama denganin m
y' = 2x - 4 =2
x = 3
Terus x nya masukin ke persamaan y awal
y =9-12-8
= -11
Masukin ke persamaan
y -y1 =m(x-x1)
y+11=2(x-3)
y=2x - 17