Three.
A plane
You have to have three or more points to have non-colinear points because any two points determine a line. Noncolinear are NOT on the same line.
3
Two distinct (different) points are needed to determine a line.
3
Three.
3
A plane
Three.
8
You have to have three or more points to have non-colinear points because any two points determine a line. Noncolinear are NOT on the same line.
three
3
Two. Two points determine a line. Three points determine a plane.
noncollinear
You need two points to determine a line. A single point can have an infinite number of lines passing through it.