Respostas

2014-03-13T13:01:35-03:00
XM = (x1 +x2)/ 2

-3 = ( 7 + X) /2

-6 = 7 + X

X = - 13

---------------------------------

YM =  ( Y2 + Y1 ) / 2

24 = ( 13 + Y ) / 2

48 = 13 + Y

Y = 48 - 13 = 35


B ( - 13 , 35)

2 5 2