# parametric equation of the line through a point

• March 2nd 2009, 04:36 PM
flaming
parametric equation of the line through a point
Find the parametric equation of the line through the point (3,-1) and parallel to v = (3,1,-2)
• March 2nd 2009, 04:45 PM
TheEmptySet
Quote:

Originally Posted by flaming
Find the parametric equation of the line through the point (3,-1) and parallel to v = (3,1,-2)

The general forumla is

$\vec r(t)=P_0+t \vec v$

Without a Z coordinate (for you point) I don't think you can write it.

I hope this helps