Always, sometimes, or never true

Points A, B, and C determine a plane

Always

Points X and Y are in plane Z. Any point collinear with X and Y is in plane Z

Always

There is exactly one plane that contains noncollinear points A, B, and C

Always, 3 points determine a plane

The intersection of 2 planes can be a point

Never

Line r contains only point P

Never, a line needs two points

There are at least 3 lines through points J and K

Never, two points make one line

The intersection of 3 planes is a line

Sometimes, 3 planes can intersect at a point

If points M, N and P lie on plane X then they are collinear

Sometimes, they can be on the same line