Distance formula is given as:
[tex]d = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2} [/tex]
Substituting the points you'll have
[tex]d = \sqrt{(-1-(-5))^2+(7-(-3))^2} [/tex]
[tex]d = \sqrt{4^2+10^2} [/tex]
[tex]d = \sqrt{116} [/tex]
[tex]d = \sqrt{4(29)} [/tex]
[tex]d = 2 \sqrt{29} [/tex]
or in decimal
[tex]d = 10.77 units[/tex]
