Answer:
8 to the nearest unit.
Step-by-step explanation:
Mark the 2 points and join them with a straight line.
You can find the length of this line by using Pythagoras:
The distance = √[ (-11 - (-5)^2 + (7 - 1)^2]
= √(36 + 36)
= √72
= 8.49 units.