Question

Find the distance d(A,B) between the points A and B.
A (6,-6) B(-1,-11)

(Simplify the radical!)

Answer 1

if we zero out a point we can see the distances we are looking for

Answer 2

A (6,-6) B(-1,-11)
-6+6 -6+6
---------------
0 0 -7 -5

we use that to fill in the pythag thrm to get our distance

Answer 3

sqrt(49 + 25)

Answer 4

just for comparison, cause im sure you got it from here:

sqrt(74) and i believe thats as simplified as it gets