slope m = (y2-y1)/(x2-x1)
A point on the line.
A line segment!.
It is impossible to measure a line because a line has no beginning or end point. You can only measure a line sector. A ray has a beginning point, however, but goes on in one direction endlessly.
a ray
No as it has only one end point.
It's a half-line or a ray.
A line segment is a part of a line that has a specific beginning and end point. In contrast, a line is a one-dimensional geometric figure that extends infinitely in both directions without end points. Therefore, a line is the part of a line that has no beginning and end.
The equidistant point of a straight line is the middle. Measure the distance from one end to the other and half it.
a line segment is a part of a line that is bounded by 2 end points, and contains every point on the line between its end points
the part with the end point does not, it stops at the end point. But if there is only one end point on a line, the other end does go on forever
a Ray.
Ray