Answer: [tex]y=-2[/tex]
Step-by-step explanation:
A reflection is a kind of rigid transformation where each point in a shape moves at an equal distance on the opposite side across the given line of reflection. It basically produces a mirror image of the original figure.
From the given picture, it can be seen that the coordinates of U and U'(2,0) are (1,2) and (1,-6) respectively.
Since x coordinate is same for both the coordinates.
let the coordinate for the mid point is (1,a).
Then ,[tex]a=\dfrac{-6+2}{2}=\dfrac{-4}{2}=-2[/tex]
Thus, coordinate of mid point = (1,-2)
Since each point in a shape moves at an equal distance on the opposite side across the given line of reflection, therefore we have the line of reflection = [tex]y=-2[/tex]