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Persamaan :
y -y₁ = x -x₁
y₂ -y₁ x₂ -x₁
y -1 = x -0
5 -1 2 -0
y -1 = x
4 2
2(y -1) = 4(x)
2y -2 = 4x
4x -2y -2 = 0
Jadi, jawabannya tidak ada.