Yes, they do exist. In fact, there are infinitely many of them.
It's called a Ray.
This is all a matter of labels ... what certain words mean.-- "Line" means it has no ends, and goes on forever in both directions.-- "Ray" means it has one end. It goes on forever in one direction.-- "Line segment" means it has two ends, and a definite length.
a line a ray goes in only one direction forever No, a line goes on forever in two directions, a ray starts at one point and then goes on forever.
If you were to have 3 points on the same line, then you would actually not be determining a plane, because there are infinitely many planes that can intersect a given line. But if you have 3 points in the form of the points (or vertices) of a triangle, then you determine a plane in the sense that there is only one possible plane upon which that triangle can be drawn (not including a degenerate triangle, which is equivalent to a line).
No. Pencil's like a ray. It extends only In One direction
A line segment is a line between two points, while rays only has one end point and goes infinitely from that point in a direction.
Ray
a ray only goes in one direction which is either left, right, up, or down
Yes
A ray starts at an endpoint and goes on infinitely long. It's almost the same as a line except that it only continues in 1 direction, while a lone goes on to infinity in 2 directions.Ray: ->Line:
The reason why a stretched string is not a line because it's consists of two finite points. Point "A" and Point "B'. While having two points defines a line, a string is only as finite as it's length. A true line is infinite. If your hand holds a string and stretches it, you've actually made a line segment because it has two end points and does not extend infinitely in either direction (it ends at your fingers or points).
In Geometry a line is infinite, meaning, it can continue on and on in any of it's two directions.In geometry a line can extend only in two directions (generally we draw lines left and right or up and down):While a line segment, has only the amount of space between the two points.A•----•Band Ray, has a single point and can extend infinitely in one direction. (The clock hour or minute or second hand is a ray)A•--->So a line can travel two ways in a straight path. thus a line can only go through 3 points once, if the points are all in a straight line in any direction. or diagonally, or vertical, or somewhere in between.Therefore one could write a postulate.For any undefined line can cross three points only if the three points are in a line themselves.
There is only one kind of line, but there are a few other line-like figures in the same family. Line: An object defined by at least two points and extends infinitely in both directions Ray: An object defined by at least two points, has a definite endpoint, and extends infinitely in one direction Line segment: An object defined by at least two points and has definite endpoints
A line extends infinitely in both directions, a ray in only one. A ray can be shown by drawing a small arrow above the name of the ray, with the arrow pointing in the direction of the ray.
No, line segments only have a start and a stopping point, as they are a small chunk taken out of an infinitely continuing line.
Yes, they do exist. In fact, there are infinitely many of them.