Answer
1) (2, -3) → (-2, -3)
We can easily see that this is a reflection across the y-axis.
A reflection across the y-axis changes A (x, y) into A' (-x, y)
2) (2, -3) → (-3, 2)
This is not a reflection.
No reflection will competly switch the x and y coordinates.
3) (2, -3) → (-2, 3)
This is a reflection across both axes.
A reflection across both axes c