Parameterize the plane through the point (−1,−2,−1) with the normal vector 〈3,−2,3〉
r⃗ (s,t)=
(Use s and t for the parameters in your parameterization, and enter your vector as a single vector, with angle brackets: e.g., as < 1 + s + t, s - t, 3 - t >.)