Answer
$\sqrt 41\approx6.403$ units
Work Step by Step
We know that the distance $d$ between two points $(x_{1},y_{1})$ and $x_{2},y_{2})$ is given by $d=\sqrt ((x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2})$.
Therefore, the distance between $(-3,2)$ and $(1,-3)$ will be $d=\sqrt ((1-(-3))^{2}+(-3-2)^{2})=\sqrt ((4)^{2}+(-5)^{2})=\sqrt (16+25)=\sqrt 41\approx6.403$ units