no
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 minimum of two points is required to draw a straight line. Any two distinct points can be connected by a straight line, and this line will extend infinitely in both directions. Additional points can lie on the same line, but only two are necessary to define the line's direction and position.
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.
The point at the beginning of a ray is called the "endpoint." A ray is a part of a line that starts at this endpoint and extends infinitely in one direction. Unlike a line segment, which has two endpoints, a ray has only one.
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
Half a straight line is called a "ray." A ray starts at a specific point, known as the endpoint, and extends infinitely in one direction. Unlike a line segment, which has two endpoints, a ray has only one endpoint and continues indefinitely.