To find the midpoint of a line segment AB, you can use the midpoint formula, which involves averaging the x-coordinates and the y-coordinates of points A and B.
If you have the x-coordinates as 6 and 2, adding them together gives you 8, and then dividing by 2 results in 4. This means you are finding the average of the x-coordinates of points A and B.
Similarly, if you were doing this with the y-coordinates, it would also give you the average of those coordinates.
Based on this explanation, the most appropriate answer from your options is:
It finds the average distance between the two x-values of points A and B.
(Note: The word "distance" in this context is slightly misleading; it should be understood as finding the average value or coordinate, not distance in terms of length.)