Question

What are the coordinates of the image of vertex R after

a reflection across the y-axis?
(-4, 3)
(4, -3)
(-3, -4)
(3, 4)

Answer 1

(3, 4 )

Explanation:

under a reflection in the y-axis

a point (x, y ) → (- x, y ) , then

R (- 3, 4 ) → R' (3, 4 )