nope
A line must pass the vertical line test to be considered a function. This means that a vertical line drawn through any point on the line will only intersect the line at one point, indicating that each input has only one output.
Not always. Only if the point is on the line. it
Straight Angle
When you graph a line using only the slope and a point, you start by graphing the point.
A linear polymer, where the monomer units are connected in a straight line, can be described as having one starting point and one ending point. Examples of linear polymers include polyethylene and polypropylene.
Two points determine a line. Also there is one and only line perpendicular to given line through a given point on the line,. and There is one and only line parallel to given line through a given point not on the line.
A tangent line.
It's the theorem that says " One and only one perpendicular can be drawn from a point to a line. "
There is only one point on the line segment, which is equidistant from the endpoints.
A point on a number line.
The general equation of the line is y = 3x + c. Having only one coordinate (21) of a point on this line is not enough to evaluate c.
Since a Line has only one dimention LENGTH, the only way to identify a point on it is to measure its distance from a known point ... usually on end or the other.