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A(2,3) berarti x1 = 2 , y1 = 3 B(-1,4) berarti x2 = -1 , y2 = 4
Berarti persamaan nya adalah
y - y₁ = x - x₁
y₂ - y₁ x₂ - x₁
y - 3 = x - 2
4 - 3 -1 - 2
y - 3 = x - 2
1 -3 ⇒-3 (y - 3) = 1 ( x - 2 )= -3y + 9 = x - 2
x + 3y - 2 - 9 = 0
x + 3y - 11 = 0
jadi,x + 3y = 11
#maaf kalo salah
y2-y1 x2-x1
y-3 = x-2
4-3 -1-2
y-3 = x-2
1 -3
-3y+9 = x-2
-3y = x-2-9
-3y = x-11
y= -1/3x + 11/3
Maaf kalo salah