persamaan garis yang melalui a(2,4) dan b(6,1)

Kelas 8 Matematika
Bab Persamaan Garis

(y - y1)/(y2 - y1) = (x - x1)/(x2 - x1)
(y - 4)/(1 - 4) = (x - 2)/(6 - 2)
(y - 4)/(-3) = (x - 2)/4
4 (y - 4) = (-3) . (x - 2)
4y - 16 = -3x + 6
3x + 4y = 16 + 6
3x + 4y = 22