Question

Triangle EFG has vertices E(0, 7), F(−5, −1), and G(3, 0). Find the coordinates of the image of points E', F', and G' after a reflection across the x-axis.

Answer 1

see explanation

Explanation:

under a reflection in the x- axis

a point (x, y ) → (x, - y ) , then

E (0, 7 ) → E' (0, - 7 )

F (- 5, - 1 ) → F' (- 5, - (- 1) ) → F' (- 5, 1 )

G (3, 0 ) → G' (3, 0 ) ← unchanged as G is on the x- axis