Answer
$$\overrightarrow{P Q} =(-2,-9).$$
Work Step by Step
$$\overrightarrow{P Q}=Q-P=(1,-4)-(3,5)=(-2,-9).$$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.