Answer:
The correct option is 3.
Step-by-step explanation:
If a point rotated 90° counterclockwise about the origin, then
[tex](x,y)\rightarrow (-y,x)[/tex]
It is given that P(-2, 1) is rotated 90°, it means point rotated 90° counterclockwise about the origin. So, thje image of the point P is
[tex]P(-2,1)\rightarrow P'(-(1),(-2))[/tex]
[tex]P(-2,1)\rightarrow P'(-1,-2)[/tex]
The coordinates of image of point P are(-1,-2).
Therefore the correct option is 3.
