9000106606

Determine whether the following two lines are identical, parallel, intersecting or skew. $$\begin{array}{rlr}p:x& =2t,& \\ y& =3-t,\\ z& =4-t;t\in \mathbb{R}\end{array}\begin{array}{rlr}q:x& =2-2s,& \\ y& =-1+s,\\ z& =6+3s;s\in \mathbb{R}\end{array}$$