Typically, a line is named with two points on the line.
it is, unless all three points are in the same line (Your "Why" should have be "When")
line segment
A line.
Through any three points NOT on the same straight line. If they are all on the same line then that line can act as an axis of rotation for an infinite number of planes containing the three points.
Typically, a line is named with two points on the line.
Collinear points is what it is called.
Noncollinear points are points which are not all on a common line.
Space is a boundless, three dimensional set of all points. Collinear is a set of points that are all on the same line and is 3 or more points.
If three points all lie on the same line, then the points are said to be "collinear". This is also true if the slope from each point to the next is the same.
if there are three or more points not all of which lie on the same line then they are known as non linear pointsif there are specifically three points not all of which lie on the same line then they are known as coplanar points as they will always lie on one plane
All points on the same line are colinear but if you mean what are the points all called collectively - they represent a "locus of points".
it is, unless all three points are in the same line (Your "Why" should have be "When")
A line segment is the measurable part of a line that consists of two points called endpoints.
line segment
A line.
Through any three points NOT on the same straight line. If they are all on the same line then that line can act as an axis of rotation for an infinite number of planes containing the three points.