Tentukan persamaan garis yang melalui titik A (6 , 1 ) dan titik pangkal O

titik pangkal O = (0 , 0)
x1 = 6 y1 = 1
x2 = 0 y2 =0

(y2-y1) / (y-y1) = (x2-x1) / (x-x1)
(0-1) / (y-1) = (0-6) / (x-6)
-1 / (y-1) = -6 / (x-6)
-1 (x-6) = -6 (y-1)
-x + 6 = -6y + 6
x-6y = 0