Which transformation represents a reflection over the y-axis? (x, y) → (−x, y) (x, y) → (x , −y) (x, y) → (y, x) (x, y) → (−y, x)

The answer would be (x,y)-(-y,x)

(x, y) → (−x, y)(x, y)

Step-by-step explanation:

To do a transformation over the Y-axis, you just have to change the sign on the x in order to create a matching point on the other side of the Y axis, for example if you wish to make a reflection of the point (8,9), the reflection over the Y axis would be (-8,9), the same with X and Y, if you wish to make a reflection of (x,y) you just change the sign of the x like this: (-x,y)