tentukan persamaan garis L yang melalui titik A(-2,5)dan tegak lurus garis h yang melalui titik P(1,3) dan Q (-1,4)

[tex] \frac{y - y1}{y2 - y1} = \frac{x - x1}{x2 - x1} \\ \frac{y - 3}{4 - 3} = \frac{x - 1}{ - 1 - 1} \\ \frac{y - 3}{1} = \frac{x - 1}{ - 2} \\ - 2y + 6 = x - 1 \\ - 2y = x - 1 - 6 \\ - 2y = x - 7[/tex]


[tex] - 2y = x - 7 \\ y = - \frac{1}{ 2}x - \frac{14}{2} \\ m = - \frac{1}{2} \\ m1 \times m2 = - 1 \\ - \frac{1}{2} \times m2 = - 1 \\ m2 = - 1 \times - \frac{2}{1} \\ m2 = 2[/tex]
[tex]y - y1 = m(x - x1) \\ y - ( - 2) = 2(x - 5) \\ y + 2 = 2x - 10 \\ - 2x + y = - 10 - 2 \\ - 2x + y = - 12 \\ 2x - y = 12 \\ 2x - y - 12 = 0[/tex]
maaf kalau salah