See explanation
Step-by-step explanation:
From the question, we understand that the quadrilateral is rotated by 90 degrees about the origin.
The question is incomplete; so, I will give a general explanation.
The rule for 90 degrees rotation about the origin is:
![(x,y) \to (-y,x)](/tpl/images/1392/7046/1951e.png)
For instance:
A point (4,6) will become (-6,4) after rotation.