Question

determine a distancia entre os pontos E e D 

E(4, -3)

D(-3,-4)

Answer 1

Olá Elis.

E(4,-3)  D(-3,-4)

$d_{ED}= \sqrt{x_{D} -x_{E})^2+ (y_{D}-y_{E})^2}\\ \\ d_{ED}= \sqrt{(-3 - 4)^2+ (-4-3})^2}\\\\ d_{ED}= \sqrt{(-7)^2 + (-7)^2} \\ \\ d_{ED}= \sqrt{49+49} \\ \\ d_{ED}= 7\sqrt{2}$