Question

Figure ABCD was reflected across the x-axis to create figure A'B'C'D'.

On a coordinate plane, a quadrilateral has points A prime (2, negative 2), B prime (negative 8, 2), C prime (2, 6), and D prime (8, 2).
What are the coordinates of the pre-image of B'?

(2, –8)
(–8, –2)
(–2, 8)
(8, 2)

Answer 1

Reflection across the x-axis changes (x, y) to (x, -y). So the pre-image of B'(-8, 2) is (-8, -2).

Answer: (–8, –2)