Jawabanmu

2014-04-14T21:33:16+07:00
M=7/2 | y-2=7/2(x-3) | 2y-4=7x-21 | 7x-2y-17=0
2014-04-14T23:15:02+07:00
X-x1/x2-x1=y-y1/y2-y1........ x-1/3-1=y+5/2+5......... x-1/2=y+5/7......... (x-1)*7=(y+5)*2..... 7x-7=2y+10....... 7x-2y=17....