Since it extends in both directions, it does not fit the description of going on forever in only one direction. One way to think of a ray is a line with one end A ray starts at a given point and goes off in a certain direction forever, to infinity The point where the ray starts is called (confusingly) the endpoint On its way to infinity it may pass through one or more other points In the figure above, the ray starts at a and also passes through b.
One starting point, but goes on forever Or one way to think about it, goes on forever in only one direction So that is a ray So let's do another question This right over here, you have a starting point and an ending point, or you could call this the start point and the ending point, but it doesn't go on forever in either direction. To answer the question of which figure goes on forever in only one direction, we can analyze the available options
A line segment is denoted by its two endpoints, as in \ (\ \overline {c d}\) A ray has one endpoint and goes on forever in one direction Mathematicians name a ray with notation like \ (\ \overrightarrow {e f}\), where point \ (\ e\) is the endpoint and \ (\ f\) is a point on the ray When naming a ray, we always say the endpoint first. Such a figure cannot exist If it goes on forever in only one direction then it must have an end point.
Explanation a ray is a figure that starts at a point and extends infinitely in one direction.a line extends infinitely in both directions, a line segment has two endpoints, and a point is a location with no extension.
OPEN
