The number line!!!
From negative infinity to positive infinity .
.... -2,-1,0,1,2,...
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Line.
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.
The term you are looking for is "line." In geometry, a line is a one-dimensional figure that extends infinitely in both directions. It is composed of an infinite number of points and has no endpoints.
A line segment is a specific length. A line goes on forever in both directions.
An idealised line.