If the line is not IN the plane ... it just zaps through the plane from some direction ... then it touches the plane in only one point. The intersection is a point.if it is lined up with the plane, then the intersection is a line.
point * * * * * or, nothing (if the line is parallel to the plane).
Unless the line is a subset of the plane, the intersection is a point.
A point.
A point.
The intersection of two lines is always a point or the line itself. The intersection of a line with plane also the same as above.
No. It can be the whole line.
point
over 900000000000
In most cases, in a single point. It is also possible that there is no intersection, or that the intersection is the entire line.
another point
Two parallel lines, a plane and a line in a plane parallel to it.