Question

Calcule a distancia entre os pontos:
A(-3,-4) e B(-5,3)

Answer 1

$d^2=(AB_x)^2+(AB_y)^2$
d = distancia

A(-3,-4)
B(-5,3)

$AB = B-A=\\\\AB=(-5-(-3)) ; (3-(-4)\\\\AB=(-2;7)$

distancia
$D^2=-2^2+7^2\\\\D^2=4+49\\\\D^2=53\\\\D= \sqrt{53}$