A line will either be parallel to a plane or not parallel. If it is parallel it might lie on the plane or be above or below the plane. If it is not parallel then it will intersect the plane.
In the first video I show you how to determine which property it is.
In the second video I show you how to find the point of intersection in the case when a line intersects a plane.

Determining if a line is parallel to, or lies on a plane or intersects

Point of intersection between a line and a plane