Question

sendo M(5,1) o o ponto médio de AB e A(3,3).determine as coordenadas do ponto B.

Answer 1

xM = (xA + xB) / 2 ⇔ 5 = (3 + xB)/2  ⇔ xB = 10 - 3 ⇔ xB = 7 

yM = (yA + yB) / 2  ⇔ 1 = (3 + yB)/2 ⇔ yB = 2 - 3 ⇔ yB = -1

B = ( 7, -1)

*-*-*-*-*-*-*-*-*-*-*-*
13/12/2015
Sepauto - SSRC
*-*-*-*-*-*-*-*-*-*-*-*