Jawabanmu

2014-02-06T02:23:07+07:00
Y-y1/y2-y1 = x-x1/x2-x1
y - 3 / 1-3 = x +2 /1 +2
3y - 9 =-2x -4
3y - 2x -5 = 0
3y - 2x = 5