Question

What is the reflection image of (5, -3) across the line y = -x?

(3,5)

(-3,5)

(3,-5)

(-3,-5)

Answer 1

(3, - 5 )

Explanation:

Under a reflection in the line y = - x

a point (x, y ) → (- y, - x ) , then

(5, - 3 ) → (3, - 5 )