Question

o ponto medio de um segmento é M(-2, 4) sendo A(0,0),determine as coordenadas de B​

Answer 1

Resposta:

Xm=xa+xb/2

-2=0+xb/2

-2/1=0+xb/2

0+xb=-4

Xb=-4-0

Xb=-4

Ym=ya+yb/2

4=0+yb/2

4/1=0+yb/2

0+yb=8

yb=8-0

yb=8

B(-4,8)