Question

If $O$ is the origin $OP=6$ with DRs $-2,4,-4$, then the co-ordinates of $P$ are:

• A. $2,-4,4$
• B. $-2,4,-4$
• C. $-\frac{1}{3},\frac{2}{3},-\frac{2}{3}$
• D. $-8,1,3$

Answer 1

Answer: (B)

$-2,4,-4$

Drs are nothing but $(x,y,z)$.
Therefore the point $P$ itself will be the Dr of the line $OP$, since $OP$ is the line joining Origin $(0,0,0)$ and $P(-2,4,-4)$.