a straight line. it's such a simple question that your question looks like a joke
A plane.
infinite
plane
A plane.
A line.
a straight line. it's such a simple question that your question looks like a joke
A plane.
what is a set of points that is endless in both directions
line
A plane has no endpoints. It is an endless two-dimensional field. ■
One.
There is exactly one line that can pass through two distinct points. This line is uniquely determined by the two points.
what is a set of points that is endless in both directions
In classical or Euclidean plane geometry two points defines exactly one line. On a sphere two points can define infinitely many lines only one of which will represent the shortest distance between the points. On other curved surfaces, or in non-Euclidean geometries, the number of lines determined by two points can vary. Even in the Euclidean plane, two points determine infinitely many lines that are not straight!
A Line ;)
As long as at least two of them are different points, exactly one line.