Jawabanmu

2014-04-20T09:50:45+07:00
Y-y1 = m(x-x1)
y-(-3) = 2(x-(-2)
y+3 =2x+4
y-2x = 1
2014-04-20T10:56:41+07:00
Ax + by = ax1 + by1 2x + (-1)y = 2(-2) + (-1(-3)) 2x - y = -4 + 3 2x - y = -1