find the coordinates of the verticesof each figure after the given transformation

Given,
The coordinates of the given figure are J(1, 3), U(0, 5), R(1, 5), C(3, 2)
Here, the reflection about only y axis,
The coordinates of the x-axis remain the same,
This finds the distance from the point to y = 2 by subtracting the point's y-coordinate from 2, then moves the point that far to the other side of y = 2 by adding 2.
The reflected coordinates are,
[tex]\begin{gathered} J(1,\text{ 3)}\rightarrow J^{\prime}(1,\text{ 2+(2-3))}\rightarrow J^{\prime}(1,1)_{} \\ U(0,\text{ 5)}\rightarrow U^{\prime}(0,\text{ 2+(2-5))}\rightarrow U^{\prime}(0,-1) \\ R(1,\text{ 5)}\rightarrow R^{\prime}(1,\text{ 2+(2-5)}\rightarrow R^{\prime}(1,-1) \\ C(3,\text{ 2)}\rightarrow C^{\prime}(3,\text{ 2+(2-2))}\rightarrow C^{\prime}(3,2) \end{gathered}[/tex]