Precisely that, a straight line, unless you are talking about vectors, though they have magnitude & direction. For a line that is not a vector you've given no information on which to base a proper answer.
If the line is generated by a linear equation & its ends are set by co-ordinates:
its length is
Square-root [ (dX)^2 + (dY)^2 ]
by Pythagoras, where the "d" means the change in the X and Y values.
Its direction then may be described by its angle A with the X-axis by basic trig:
Tan A = dY/dX.
Its gradient is dY/dX (function)
Displacement includes the distance between the starting and ending points and the direction in which you travel.
displacement
It could be a displacement vector.
The best shape would be a segment. because it describes a straight li e but not never-ending
Ray - A ray is part of a line that has one endpoint. It continues in one direction without ending.
a road......?
Displacement includes the distance between the starting and ending points and the direction in which you travel.
hi
A vector.
A vector.
A never-ending straight path that goes in one direction is called a line. Euclid, the Greek mathematician, described it as "breathless length".
Distance can be fully described with a magnitude and a unit. It is a scalar quantity, which means it has a magnitude (numerical value) but not a direction. A related quantity is displacement, which is the straight line distance from a starting point to an ending point. Displacement is a vector quantity, so it can only be fully described with a magnitude, a unit, and and direction.
It is called a line segement
displacement
The distance and direction between starting and stopping positions is displacement.
displacement
It could be a displacement vector.