Select the graph that best represents the statement.
A segment has one midpoint.


It'll be the first segment because the points on the first segment have 1 point in the middle and none of them else in the middle.
Hope this Helped!!
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The first graph ( one that is attached to the answer) best represents the statement.
Midpoint--
A mid point is a point which is located in between 2 point i.e. it exist in the middle of the two points i.e. it is at equal distance from both the end points of a segment.
( Also, point g is close to c and is at a distance from d and hence point g is not a mid point of segment cd.
Similarly point y is close to d and is at a greater distance from c and hence it is not a mid point of segment cd)