Answer
$4i-6j$
Work Step by Step
Given $P(-1,2)$ and $Q(3,-4)$, we have $\vec{PQ}=<3+1,-4-2>=<4,-6>=4i-6j$
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.