To find the equation of a vertical line of reflection for a polygon, we need to determine the x-coordinate where the polygon can be reflected onto itself.
If you provide the specific coordinates of the vertices of the polygon or a description of its shape, I can help you find the equation of the vertical line of reflection.
However, if you are looking for a general format to complete, the equation will typically look like:
x = [some value]
For example, if the line of reflection is at x = 3, the completed equation would be:
The vertical line of reflection of the polygon is the equation x = 3.
Please provide more details for a specific answer!