persamaan garis g beserta caranya

garis H
I (6,1)
II(0,-2)
m = -2-1/0-6 = -3/-6 = 3/6 =1/2

garis g m= tegak lurus berarti berkebalikan
m=-2
=y-1 = -2 (x-6)
y-1 = -2x +12
y = -2x + 12 + 1
y = -2x + 13

= y + 2x -13 =0