Answer: The set of point M ,point N and all the points between point M and point N.
Explanation:
We know that in geometry, a part of a line that is bounded by two distinct end points is called a line segment. It contains every point on the line between its endpoints.
Therefore a line segment is a set of its distinct end points and all the points between the endpoints.
Thus, for given line segment
is the set of point M ,point N and all the points between point M and point N.