Answer: A' (1, 5)
B' (-3, 5)
C' (-3, 2)
D' (1, 2)
Explanation:
To reflect across the y-axis the original point (x, y) must become (-x, y) which is essentially taking the opposite of x
We can do that with each of the point of the rectangle ABCD to make the reflect rectangle A'B'C'D'
A (-1, 5) to A' (1, 5)
B (3, 5) to B' (-3, 5)
C (3, 2) to C' (-3, 2)
D (-1, 2) to D' (1, 2)