Answer: A. (-2,8)
Step-by-step explanation:
We know that the rule for rotation of \(R_{90}\) is given by :-
\((x,y)\rightarrow(-y,x)\), where (x,y) is the point of pre-image and (-y,x) is a point of image.
The given point of pre-image : A(8,2)
Then after rotation of \(R_{90}\), we have the image point as :-
\((8,2)\rightarrow(-2,8)\)
Hence, the image point of A(8,2) is (-2,8) .
