persamaan garis yg melalui titik A (4,-3) dan B (-2,-1)

misal dengan rumuspaling dasar
(y - y1)/(y2 - y1) = (x - x1)/(x2 - x1)
(y + 3)/(-1 + 3) = (x - 4)/(-2 - 4)
(y + 3)/2 = (x - 4)/-6
dikali 6
3(y + 3) = -(x - 4)
3y + 9 = -x + 4
3y + x + 5 = 0