Question

Polygon ABCD is drawn with vertices A(−4, −4), B(−4, −6), C(−1, −6), D(−1, −4). Determine the image coordinates of B′ if the preimage is reflected across y = 3.

B′(−4, 6)
B′(−4, 12)
B′(−1, −3)
B′(10, −6)