Answer:
The line of reflection is [tex]x=1[/tex]
Step-by-step explanation:
In reflection, the image and the pre-image are the same distance from the line of reflection.
We choose any pair of corresponding points and find the midpoint.
The points (-1,3) and (3,3) are corresponding points.
The x-coordinate of the midpoint is [tex]x=\frac{-1+3}{2}=1[/tex]
Hence the line of reflection is [tex]x=1[/tex]
