Question

(2,5) (5,2) (2,2) undergoes a reflection over the y-axis in units

Answer 1

When a point undergoes a reflection over the y-axis, its x-coordinate changes sign while its y-coordinate remains the same.

(2,5) reflected over the y-axis becomes (-2,5)
(5,2) reflected over the y-axis becomes (-5,2)
(2,2) reflected over the y-axis becomes (-2,2)