As long as at least two of them are different points, exactly one line.
Any three non-collinear points will define a single plane. A plane is composed of an infinite number of distinct lines.
Three
only 1 lines can contain 3 collinear points. Maybe you mean coplanar?
7.
No. Collinear means on the same line. So collinear points all must lie on the same line. Not parallel lines.
3
Any three non-collinear points will define a single plane. A plane is composed of an infinite number of distinct lines.
3
There are 13*12/2 = 78 lines.
# 1
15 lines.
The question asks if coplanar points are collinear. Let's break this down: Definitions Coplanar Points: Points that lie on the same plane. Collinear Points: Points that lie on the same straight line. Explanation Coplanarity: Points are considered coplanar if you can draw a single flat surface (a plane) through all of them. All lines lie in some plane, so if points are coplanar, they don't necessarily have to form a straight line—they just need to be on the same flat surface. Collinearity: Points are collinear if they all lie on the same line. This is a more specific condition than coplanarity because a line is a special type of plane (a line being a one-dimensional subspace of a plane). Conclusion Not all coplanar points are collinear. For example, three points can form a triangle; these points are coplanar but not collinear. In summary, coplanar does not imply collinear. All collinear points are coplanar, but not all coplanar points are collinear.
Three
depends on the position of the points if points are collinear, we have just only one line, the minimum number. If points are in different position (if any of the two points are not collinear) we have 21 lines (7C2), the maximum number of lines.
only 1 lines can contain 3 collinear points. Maybe you mean coplanar?
The definition of a non-collinear line is that this is a line on which points do not lie on one line. The opposite of this is a collinear point. Collinear points refer to three points that do fall on a straight line.
7.