Two Planes Intersecting in a Line

If two planes are not parallel nor coincident, then they must intersect along a line. In this example, the planes are x + 2y + 3z = -4 and x - y - 3z = 8. The dotted line represents the line of intersection of these two planes.

What are the normal vectors of each plane?

How many points of intersection are there between these planes?

Select all that apply
  • A
  • B
  • C
  • D
  • E
Check my answer (3)