What are the direction ratios of the line $\frac{x - 2}{3} = \frac{y + 1}{4}$, $z = 5$?

Explanation

1. 01

   $z = 5$ at every point, so $z$ does not change along the line: its direction ratio is 0.

2. 02

   The other two are the denominators, so the ratios are $3, 4, 0$.