Cartesian equation of a line AB is (2x - 1)/2 = (4 - y)/7 = (z + 1)/2

Question

Cartesian equation of a line AB is

\(\frac{2x - 1}{2}=\frac{4 - y}{7}=\frac{z + 1}{2}\)

Write the direction ratios of a line parallel to AB.

Answer 1

We have equations of line

Direction ratios of given line are 1, -7, 2.

Hence, direction ratios of any parallel line are 1, -7, 2 or any multiples of ratios.