# What is the distance between (–7, 8)  and  ( 7, 4) ?

dist$= {\left({\left(- 7 - 7\right)}^{2} + {\left(8 - 4\right)}^{2}\right)}^{0.5}$
=((-14)²+4²)^0.5
$= {\left(289 + 16\right)}^{0.5}$
$= \sqrt{305}$