Answer:
answer: The line of reflection must be x=5.
Step-by-step explanation:
Given: In the diagram, polygon ABCD is flipped over a line of reflection to form a polygon with its vertices at A′, B′, C′, and D′. Points A′, B′, and D′ are shown, but the line of reflection and point C′ are not .
coordinates of C from the graph = (4,2)
If the coordinates of C'=(6,2)
we can see that value of y isn't change with reflection therefore the line of reflection would be x= ordinate of C'+ ordinate of C divided by 2=6+4 divided by 2=10 divided by 2=5
Therefore, the line of reflection must be x=5.