what is a ray
http://www.jiskha.com/display.cgi?id=1267059872
how does this help
Oops! Sorry. Let's see if I get it right this time. :-)
http://www.mathopenref.com/ray.html
A ray is a basic geometric concept in mathematics that refers to a part of a line that starts at a particular point and extends infinitely in one direction. It can be visualized as a line with an endpoint (called the initial point) and a direction indicated by an arrowhead. Rays can be named using two points, with the initial point first, such as "Ray AB."
To understand and visualize a ray, you can follow these steps:
1. Start with a straight line. Draw a line segment with a clear starting point and endpoint.
2. Choose an endpoint on the line segment. This endpoint will become the initial point of the ray.
3. Draw an arrowhead on the line segment, pointing away from the initial point. This indicates the direction in which the ray extends infinitely.
4. Ensure that the arrowhead extends beyond the endpoint of the line segment. This represents the infinite extension of the ray in one direction.
By following these steps, you can create and understand a ray. Remember that a ray has an initial point, and it extends infinitely in one direction.