# What is the distance between (–6, 3, 4)  and (–1, 1, 3) ?

$\sqrt{30}$
$\sqrt{{\left(x 1 - x 2\right)}^{2} + {\left(y 1 - y 2\right)}^{2} + {\left(z 1 - z 2\right)}^{2}}$
$\sqrt{{\left(- 6 + 1\right)}^{2} + {\left(3 - 1\right)}^{2} + {\left(4 - 3\right)}^{2}}$
=$\sqrt{30}$