That type of line would be called a ray.
Either one of the endpoints will work. The other endpoint is the end.
A line with a dot at one end and an arrow at the other end is called a ray in geometry. A ray has a starting point (the dot) and extends infinitely in one direction (towards the arrow). It is often denoted by naming the starting point and any other point on the ray, such as "ray AB" if A is the starting point and B is another point on the ray. Rays are commonly used in geometric constructions and proofs.
end point
a line segment
A line that has a starting point and an end point.
the answer is a 'ray'
The starting point in a race is called the starting line. The end point of a race is called the finish line.
A ray.
Line Segment
line
That type of line would be called a ray.
There is no end point, a ray is never ending but has a point to represent the beginning
From the starting point, draw a horizontal line 17.3 inches long. From the end of that line, draw a vertical line 10 inches long. The line from the starting point to the end of the vertical line makes an angle of 30.03° with the horizontal line.
A ray. Rays have a starting point and no ending. They go on forever.
Either one of the endpoints will work. The other endpoint is the end.
A line segment is unique because unlike a regular line that goes on forever in both directions, a line segment has a starting point and an end point.