Question

calcule as coordenadas de M, ponto médio do segmento AB, quando:
a) A (-1,4) e B (5,-2)
b)A (1,-7) e B (4,-6)
c)A( 1 , 1 ) e B ( 1 , -4 )
2 2

Answer 1

Xm = Xa+Xb / 2
Ym = Ya+Yb / 2
a)
Xm = -1 +5 / 2 = 2 
Ym = 4 - 2 / 2 = 2
M(2,2)

b)
Xm = 1+4 / 2 = 5/2
Ym = -7 - 6 / 2 = -13/ 2
M(5/2,-13/2)

c)
Xm = 1/2+1/2 / 2 = 1/2 
Ym = 1/ - 4 / 2 = -3/2
M(1/2,-3/2)