A line
The term you are describing is a line.
A line.
line
It would be a horizontal straight line, extending without end in both directions.
A line
The term you are describing is a line.
A line.
line
It would be a horizontal straight line, extending without end in both directions.
That's the definition of a "line".
The set of points on a straight curve that extends to infinity in both directions is a line. A ray is the set of points that lie on a straight curve that is terminated at a point, and continues to infinity. It is also called a half-line. If the set is terminated at a point at both ends, then it is a line segment.
There is no reason that a line should be a straight line. A curved line IS a line. So false - or fales, as you have it!
line
A line.
A straight line without any defined end points
No, it has an endpoint, but the other end (with the arrow) continues infinitely.