Question

3. Which rule describes a transformation across the y-axis?

Answer 1

Answer:

Reflection

Step-by-step explanation:

Answer 2

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).