Thread: The Vector Equation of a Plane

Find the eqn of the plane in the form r.n=p, which contains the line, l, and the point with position vector, a, where

l: r=-2i +3j-k +t(2i-j-3k) a=-3i+j+2k

Any help on working out n?

I'm not sure i understand; the answer in the back of my book tells me it's r.(9i+3j+5k)=-14

Originally Posted by Erghhh

Find the eqn of the plane in the form r.n=p, which contains the line, l, and the point with position vector, a, where

l: r=-2i +3j-k +t(2i-j-3k) a=-3i+j+2k

Any help on working out n?

Ok what should be the plane's direction?

What should be its distance from origin?
think in terms of line and that point

EDIT: Distance = perpendicular distance of plane