In Exercises 5-10, find a set of (a) parametric equations and (b) symmetric equations for the line through the point and parallel to the specified vector or line. (For each line, write the direction numbers as integers.)

$\quad \quad \textit{Point} \quad \quad \quad \quad \quad \quad \textit{Parallel to}$

$\quad (0, 0, 0) \quad \quad \quad \quad \quad \textbf{v} = \langle 1, 2, 3 \rangle$