Answer
$ \sqrt {8}$
or
$\approx 2.83$ unit
Work Step by Step
To calculate distance between given points (-3, 8) and (-1, 6), we will use distance formula-
r = $ \sqrt { (x_{2} - x_{1}) ^{2} + (y_{2} - y_{1}) ^{2}}$
= $ \sqrt { (-1 - (-3)) ^{2} + (6 - 8) ^{2}}$
= $ \sqrt { (-1 +3) ^{2} + (-2) ^{2}}$
= $ \sqrt { (2) ^{2} + (-2) ^{2}}$
= $ \sqrt {4 +4}$
= $ \sqrt {8}$
$\approx 2.83$ unit
