It takes exactly 2 distinct points to uniquely define a line, i.e. for any two distinct points, there is a unique line containing them.
Two
2 points
None, because a line goes on forever. A line can only have points.
Two points.
A line, ray, or line segment contains an infinite number of points.
Two distinct (different) points are needed to determine a line.
Two
2
A line contains an infinite number of points but it takes only two points to determine a line.
If 2 points determine a line, then a line contains infinitely many planes.
You need two points to determine a line. A single point can have an infinite number of lines passing through it.
Three noncollinear points A, B, and C determine exactly three lines. Each pair of points can be connected to form a line: line AB between points A and B, line AC between points A and C, and line BC between points B and C. Thus, the total number of lines determined by points A, B, and C is three.
There is exactly one line that can pass through two distinct points. This line is uniquely determined by the two points.
2
Exactly one. No more and no less.
As long as at least two of them are different points, exactly one line.
A plane can be determined by three points, as long as the three points do not lie along a single line.