Answer:
[tex]2\sqrt{5}[/tex] [tex]units[/tex]
Explanation:
Use the distance formula:
[tex]\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2} }[/tex]
[tex]\sqrt{(1-(-3)^{2}+(6-4)^{2} }[/tex]
[tex]\sqrt{(1+3)^{2}+(2)^{2} }[/tex]
[tex]\sqrt{(4)^{2}+4 }[/tex]
[tex]\sqrt{16+4 }[/tex]
[tex]\sqrt{20}[/tex]
[tex]=2\sqrt{5}[/tex] [tex]units[/tex]