Jawabanmu

2014-04-29T12:59:28+07:00
Y-y1/y2-y1 = x-x1/x2-x1  
 y+5/ -7+5 = x+2/ 3+2
y+5/-2= x+2 / 5
5y+25 = -2x - 4
 5y = -2x-29 atau 5y+2x+29 =0 (/ artinya per)