Question

sabendo  que A (-1,6)e que o ponto medio  do segmento e ab  e M(3,5), determine as coordenadas de b

Answer 1

xm=xa+xb/2

3=-1+xb/2

-1+xb=6

xb=6+1

xb=7

ym=ya+yb/2

5=6+yb/2

6+yb=10

yb=10-6

yb=4

Pb (7,4)