A line passes through the point with position vector 
and is the direction of 
Find equations of the line in vector and Cartesian form.
The vector equation of a line passing through a fixed-point ‘a’ and having directions parallel to 
is given by
Here 
the Cartesian equation of the line is
where 
are the coordinates of the fixed-point ‘a’, and 
are coordinates of 
.
so, the cartesian equation becomes as follows
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