What is the distance between the points (-8,-4) and (-3, -8)?

$\textcolor{g r e e n}{\sqrt{41}}$
$\left\mid \left(- 8 , - 4\right) : \left(- 3 , - 8\right) \right\mid = \sqrt{{\left(- 8 - \left(- 4\right)\right)}^{2} + {\left(- 8 - \left(- 3\right)\right)}^{2}} = \sqrt{16 + 25} = \sqrt{41}$