will mark brainliest pls help

Answer:
[tex]d=10[/tex]
Step-by-step explanation:
Distance Formula: [tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
Used to find the distance between 2 points.
Simply plug in your 2 coordinates into the distance formula to find distance d:
[tex]d=\sqrt{(7-1)^2+(-7-1)^2}[/tex]
[tex]d=\sqrt{(6)^2+(-8)^2}[/tex]
[tex]d=\sqrt{36+64}[/tex]
[tex]d=\sqrt{100}[/tex]
[tex]d=10[/tex]