Question

What is the distance between the points (-1, 5) and (3, 7

Answer 1

Thanks!

Answer 2

Distance formula, given two points (x1,y1) and (x2,y2) is,\[D=\sqrt{(x_{2}-x_{1})^2+ (y_{2}-y_{1})^2}\]

Answer 3

Good from here?

Answer 4

yes

Answer 5

I get \[D=\sqrt{20}=\sqrt{4*5}=2\sqrt{5}\]