To find the coordinates of a point reflected over the y-axis, you change the sign of the x-coordinate while keeping the y-coordinate the same.
If the original coordinates of point \( D \) are \( (x, y) \), the coordinates of the reflected point \( D' \) will be \( (-x, y) \).
If you provide the specific coordinates of point \( D \), I can help you determine the coordinates of the reflected point \( D' \).