Tulislah persamaan garis yang di tunjukan masing-masing gambar (2,6) dan (-1,-4)

y2 - y1
x2 - x1

=-4 - 6
  -1 - 2

= -10
    -3

y-y1/y2-y1 = x-x1/x2-x1
y-6/-4-6 = x-2/-1-2
y-6/-10 = x-2/-3
-3y+18 = -10x+6
-3y=-10x-12
3y =10x+12
y = 10/3x + 4

Jadi,persamaan garis = 10/3x + 4