Question

On a coordinate plane, a triangle has points F (3, 4), D (5, negative 3), and E (1, negative 2).
What are the coordinates of the image of vertex D after a reflection across the x-axis?

(5, 3)
(–5, –3)
(–3, 5)
(3, –5)

Answer 1

Reflecting across the x-axis keeps x the same and negates y.
D = (5, −3) → D' = (5, 3).

Answer: (5, 3)