Mathematics for IGCSE & O level - Coordinate Geometry (Section 2 - No. 29)
Which of the following statements about a line segment is true?
It can be extended in either direction forever.
It is the part of a line between two points.
It has no endpoints.
It has a defined gradient only if it's a horizontal line.
Giải thích
A line segment is the portion of a line between two defined endpoints.