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x-(-2)/1-(-2) = y-3/-2-3
x+2/3 = y-3/-5
-5x-10 = 3y-9
5x+3y+1 = 0
II
Persamaan :
y -y₁ = x -x₁
y₂ -y₁ x₂ -x₁
y -3 = x-(-2)
-2 -3 1 -(-2)
y -3 = x +2
-5 3
3(y -3) = -5(x +2)
3y -9 = -5x -10
3y = -5x -10 +9
3y = -5x -1
5x +3y +1 = 0
Itu jawabannya.
9. Maaf yang no. 9 saya tidak tahu.