Respuestas

2012-09-11T02:32:03+02:00

m=-1/2

(4.-1)

y-(-1)=-1/2(x-4)

2y+2=-x+4

2y+x-2=0

x=0-->y=1-->(0,1)

y=0-->x=2 -->(2,0)

P1=(2(0,1)+(2,0))/3=(2/3,2/3)

P2=(1(0,1)+2(2,0))/3=(4/3,1/3)

 

la formula es

A,B

r=p/q

P=(qA+pB)/(p+q)