It is a Ray
A ray is part of a line which is finite in one direction, but infinite in the other. It can be defined by two points, the initial point, A, and one other, B. The ray is all the points in the line segment between A and B together with all points, C, on the line through A and B such that the points appear on the line in the order A, B, C.
Source: Faber, Richard L. (1983). Foundations of Euclidean and Non-Euclidean Geometry. New York, United States: Marcel Dekker. ISBN 0-8247-1748-1.
A ray has one endpoint and continues indefinitely in one direction.
It's called a Ray.
I am pretty sure that a ray is part of a line and has one endpoint. A ray starts at one point and continues infinitely out in one direction. A line continues infinitely in two directions. So, if you put a point on a line, then there would be one endpoint, and it would be part of a line. Either side of the point and the point itself together make a ray, just not both sides of the point.
A line segment is the measurable part of a line that consists of two points called endpoints.
The shortest distance between two points is a line, or a line segment. If you have two points, and you know they are part of a line, you can connect them with a line.
A ray has one endpoint and continues indefinitely in one direction.
Ray - A ray is part of a line that has one endpoint. It continues in one direction without ending.
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Answer: Ray
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