Question

determine o ponto medio dos segmentos a(3,-1)e b(-2,1)

Answer 1

$Pm(\frac{3-2}{2},\frac{-1+1}{2})=(\frac{-1}{2},0)$

Answer 2

Utilize as fórmulas da Geometria Analítica:

$x_M=\frac{x_A+x_B}{2}=\frac{3-2}{2}=\frac{1}{2}\\ \\ y_M=\frac{y_A+y_B}{2}=\frac{-1+1}{2}=0\\ \\ \boxed{M(\frac{1}{2};0)}$