Answer:
10 units
Explanation:
You use the Pythagorean Theorem to find that the difference in x coordinates is 6, and in y coordinates is 8. You don't make the 6 negative because you are looking for distance, not direction (think scalar, not vector if that helps). Then you square the two terms to get 36 (6 squared) + 64 (8 squared) = 100 (sum). Then, you find the square root of 100 to get 10, which is your answer. I don't know if there's any units in it, but if there are, I would reccomend putting the corresponding units. Hope this helps!