26 minutes ago, I gave you a complete solution for the distance between (-1, 2) and (7, 8). As I wrote it, I gave you a complete explanation of every step, so that you would then know how to find the distance between ANY two points.
Go back and review that one. Then use the same procedure to solve this one. When you're finished, you'll have the solution to this one ... completely on your own ... and plus, you'll LEARN something too.