Question

which is the function rule that will transform a geometric figure by reflecting across the y-axis and up 5 units?

Answer 1

(x, y) ⇒ (-x, y+5)

Explanation:

Reflecting across the y-axis changes the sign of the x-coordinate.

Translation up 5 units adds 5 to the y-coordinate.

Together, the transformations can be described by ...

(x, y) ⇒ (-x, y+5)