Question

What is the image of ( 0 , − 8 ) (0,−8) after a reflection over the line y = x y=x?

Answer 1

(- 8, 0 )

Explanation:

under a reflection in the line y = x

a point (x, y ) → (y, x ) , then

(0, - 8 ) → (- 8, 0 )