Question

Determine o ponto médio ente os pontos
(1)A(-1,5) B(-3,9)
(2)A(4,-6) B(0,8)
(3)A(-1,-6) B(8,-5)
(4)A(3,-5) B(4,6)

Answer 1

1) $x_{m} = \frac{ x_{a} + x_{b} }{2} = \frac{ -1 + (-3) }{2}= \frac{-4}{2} =-2$
    $y_{m} = \frac{ y_{a} + y_{b} }{2} = \frac{ 5 + 9 }{2}= \frac{14}{2} =7$
    $p_{m} =(-2,7)$

2)$x_{m} = \frac{ 4 + 0 }{2}= \frac{4}{2} =2$
   $y_{m} = \frac{ -6 + 8 }{2}= \frac{2}{2} =1$
   $p_{m} =(2,1)$

3)$x_{m} = \frac{ -1 + 8 }{2}= \frac{7}{2} =3,5$
   $y_{m} = \frac{ -6 + (-5) }{2}= \frac{-11}{2} =-5,5$
   $p_{m} = [(3,5),(-5,5)]$

4)$x_{m} = \frac{ 3 + 4 }{2}= \frac{7}{2} =3,5$
   $y_{m} = \frac{ -5 + 6 }{2}= \frac{1}{2} =0,5$
   $p_{m} = [(3,5),(0,5)]$