Yes, that is correct.

A unit vector has length 1. PQ is not a unit vector because its length islater in the question I have to write a unit vector with the same direction and I have no idea how to do this.

Thanks for the help

ES

You can change the length of a vector while not changing the direction by multiplying or dividing both components by the same number. And you can change the length to 1 by dividing by .