Jawabanmu

Jawaban paling cerdas!
2014-08-17T22:52:26+07:00
Gunakan rumus
 \frac{y-y1}{y2-y1} =  \frac{x-x1}{x2-x1}
x1=-2     x2=1
y1=5       y2=3

masukan
 \frac{y-5}{3-5} =  \frac{x-(-2)}{1-(-2)}
 \frac{y-5}{-2} =  \frac{x+2}{3}
kalikan silang
3(y-5)=-2(x+2)
3y-15=-2x-4
3y+2x=-4+15
3y+2x=11
2 4 2
2014-08-17T23:09:25+07:00