Tentukan persamaan garis yang melalui titik (-2 3) dan (1 1)

Kelas 8 Matematika
Bab Persamaan Garis

(-2, 3) dan (1, 1)

(y - y1)/(y2 - y1) = (x - x1)/(x2 - x1)
(y - 3)/(1 - 3) = (x + 2)/(1 + 2)
(y - 3)/(-2) = (x + 2)/3
3 (y - 3) = -2 (x + 2)
3y - 9 = -2x - 4
2x + 3y = 9 - 4
2x + 3y = 5

y-y1/y2-y1=x-x1/x2-x1
y-1/3-1=x-1/-2-1
y-1/2=x-1/-3
-3(y-1)=2(x-1)
-3y+3=2x-2
-3y=2x-5
y=2/-3x-5/3