titik A (7,-5) titik B (-5,4) Tentukan persamaangaris lurus AB tlg jawab dgn pakai jalan

[tex] \frac{y - y1}{y2 - y1} = \frac{x - x1}{x2 - x1} \\ \frac{y - ( - 5)}{4 - ( - 5)} = \frac{x - 7}{ - 5 - 7} \\ \frac{y + 5}{4 + 5} = \frac{x - 7}{ - 5 - 7} \\ \frac{y + 5}{9} = \frac{x - 7}{ - 12} \\ - 12(y + 5) = 9(x - 7) \\ - 12y - 60 = 9x - 63 \\ - 12y - 9x - 60 + 63 = 0 \\ - 12y - 9x + 3 = 0[/tex]