persammaan garis melalui titik (2,3)dari (-1,4)adalah

Kelas 8 Matematika
Bab Persamaan Garis

(y - y1)/(y2 - y1) = (x - x1)/(x2 - x1)
(y - 3)/(4 - 3) = (x - 2)/(-1 - 2)
(y - 3)/1 = (x - 2)/(-3)
(-3) . (y - 3) = x - 2
-3y + 9 = x - 2
x + 3y = 11