Question

Seja M(3,3) o ponto médio do segmento ab. Calcule as ordenadas do ponto A sabendo que B(4,0)

Answer 1

A( XA,YA ) B ( 4,0 ) M ( 3,3 ) XM = XA + YA / 2 3 = XA + 4 / 2 3.2 = XA + 4 XA = 2 YM = YA + YB / 2 3 = YA + 0 / 2 3.2 = YA + 0 YA = 6 A ( 2,6 )