Answer:
7
Explanation:
the x-coordinates are -1 and 6. there's a distance of 7 between those two.
the y-coordinates are -5 and -5. there's a distance of 0 between those two.
(distance between points)² = 7² + 0² = 49 + 0 = 49.
take the square root of both sides:
distance between points = √49 = 7.
this would also have worked if the y-coordinates were different.