Each vertex must be moved to the opposite side of the line of reflection while maintaining the same distance from the line.
Practice makes perfect
Before we begin, let's add the given line of reflection to the graph of â–ˇ EFGH.
To reflect the triangle in the line y=3, each vertex must be moved to the opposite side of the line of reflection while maintaining the same distance from the line. Note that, since E and F lie on the line, they are their own reflections.
Finally, we can connect the corresponding segments and obtain the image of â–ˇ EFGH after the reflection in y=3.
