Question

 determine o ponto medio dos segmentos; a(2-5)e b (-4,-1)

Answer 1

Use as seguintes fórmulas da Geometria Analítica:

$=x_M=\frac{x_a+x_B}{2}=\frac{2+(-4)}{2}=\frac{2-4}{2}=\frac{-2}{2}=-1\\ \\ e\\ \\ y_M=\frac{y_A+y_B}{2}=\frac{-5+(-1)}{2}=\frac{-5-1}{2}=\frac{-6}{2}=-3\\ \\ Logo:\\ \\ \boxed{M(-1,-3)}$

Answer 2

Seja $M(x,y)$ o ponto procurado.

$A(2,-5)$, $B(-4,-1)$

Temos:

$x=\dfrac{2+(-4)}{2}=\dfrac{2-4}{2}=-1$

$y=\dfrac{-5+(-1)}{2}=\dfrac{-5-1}{2}=-3$

Assim, $M(-1,-3)$.