ANSWER: Never; Postulate 2.1 states through any two points, there is exactly one line. 26. If points M, N, and P lie in plane X, then they are collinear.

Do two point always sometimes or never determine a line?

ALWAYS if two points lie in a plane, the entire line does too and points determine a line. If points G and H are contained in plane M, then GH is perpendicular to plane M. NEVER, if two points lie in a plane, the entire lines does too. Three collinear points determine a plane.

Can 2 points determine a line?

Two distinct points determine exactly one line. That line is the shortest path between the two points. ... If two points of a line lie in a plane, the entire line lies in the plane.