tentukan persamaan garis yang melalui titik a.(0,2) dan (1,3) b.(1,3) dan(4,5)

a) (y - y1) / (y2 - y1) = (x - X1) / (x2 - X1)
(y - 2) / (3 - 2) = (x - 0) / (1 - 0)
(y - 2) / 1 = (x ) / 1
1 (y - 2) = x
y - 2 = x
y - x - 2 = 0

b) (y - y1) / (y2 - y1) = (x - X1) / (x2 - X1)
(y - 3) / (5 - 3) = (x - 1) / (4 - 1)
(y - 3) / 2 = (x - 1) / 3
3(y - 3) = 2 (x - 1)
3y - 9 = 2x - 2
3y - 2x = - 2 + 9
3y - 2x = 7