If the line is straight, then only one line may connect two points.
there are 6 lines can pass through 4 noncollinear points.
There is only one possible line that can can through two different points, presuming there are no overlaps.
There can be infinitely many lines: think of the longitudes through he North and South poles. However, there can be only one straight line.
Colinear points mean that if you draw a (really long) line between any two of them, the line will pass through the others. Or simply: there can exist a straight line that can pass through all of them. These are colinear points: . .... .. One line can pass through all of them: These ar not colinear points: :. If I try to connect any two of them with a line, the third point will not lie on that line.
An infinite number of lines can pass through a point.
there are 6 lines can pass through 4 noncollinear points.
1
Just one.
exactly one
There is exactly one line that can pass through two distinct points. This line is uniquely determined by the two points.
There is only one possible line that can can through two different points, presuming there are no overlaps.
Elevation contour lines.
There is only one possible line that can can through two different points, presuming there are no overlaps.
There can be infinitely many lines: think of the longitudes through he North and South poles. However, there can be only one straight line.
It has 8. Each passes through the centre. Four pass through vertices, four pass through the mid-points of opposite sides. 4
The lines that pass through points 4 -6 2 -3 and 6 5 3 3 on a grid are the lines y=x.
One line only. This is because by definition a line only needs two points. Three points not in a line would make a plane when connected. Two points, when connected, form a line in which there is only one way to pass through points a and b.