Answer-
A reflection over the y=x, will transform (p, q) to (q, p)
Solution-
A reflection over the x-axis
When you reflect a point across the x-axis, the x-coordinate remains the same, but the y-coordinate is transformed into its opposite (sign is changed).
The point (x, y) becomes (x, -y)
A reflection over the y-axis
When you reflect a point across the y-axis, the y-coordinate remains the same, but the x-coordinate is transformed into its opposite (sign is changed).
The point (x, y) becomes (-x, y)
A reflection over y = x
When you reflect a point across the line y = x, the x-coordinate and y-coordinate change places (sign remains as it is).
The point (x, y) becomes (y, x)
A rotation of 90° about the origin
Rotation of point (x, y) about the origin O through 90° in clockwise direction, the new position will be (y, -x).
Rotation of point (x, y) about the origin O through 90° in counter-clockwise direction, the new position will be (-y, x).
Therefore, option C is correct.
