Question

2- Se M (2,3) e o ponto médio de AB sendo (×,5) e (4,y) quanto vale x +y?​

Answer 1

Resposta:

M (2,3)

A (x, 5)

B (4, y)

Ponto médio:

x = (x1 + x2) / 2

y = (y1 + y2) / 2

Xm = AB/2

Xm = (x1 + x2) / 2

2 = 2 + x / 2

4 = 2 + x

x = 2

Ym = AB/2

Ym = (y1 + y2) / 2

3 = 5 + y / 2

6 = 5 + y

y = 1

R: x + y = 2 + 1 = 3