Answer:
(x, y) -----> (-x, y).
(Please mark as brainliest)
Step-by-step explanation:
We are given to write a rule that describes a transformation across the y-axis. We know that if a point is reflected across the y-axis, then the sign before the x co-ordinate changes. That is, if the point (x, y) is reflected (transformed) across the y-axis, then its new co-ordinates will be (-x, y).
Thus, the required transformation rule is given by (x, y) -----> (-x, y).
