Answer
$8.544$ units
Work Step by Step
Step 1: $(-1,5)=(x_{1},y_{1})$ and $(2,-3)=(x_{2},y_{2})$
Step 2: The distance between two points is found by the formula,
$d=\sqrt ((x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2})$
Step 3: $d=\sqrt ((2-(-1))^{2}+(-3-(5))^{2})$
Step 4: $d=\sqrt ((2+1))^{2}+(-8)^{2})$
Step 5: $d=\sqrt ((3)^{2}+(-8)^{2})$
Step 6: $d=\sqrt (73)\approx 8.544$ units