In the diagram, polygon ABCD is flipped over a line of reflection to form a polygon with its vertices at A, B, and D are shown, but the line of reflection and point C are not

Answer:
The line of reflection must be x=5
Step-by-step explanation:
Here, C = (4, 2) & C' = (6, 2)
And the reflection here is across y-axis on x-axis.
The value of y is not changing with reflection, so the line of reflection will be:
[tex](4+6)/2=10/2=5[/tex]