Video Transcript
Which of the following
represents the image of the line segment ๐ด๐ต after a reflection in the line
๐ฟ?
Remember, we can reflect a line
segment through a line by reflecting its endpoints. When we do so, the image of
each point will be the same perpendicular distance from the mirror line as the
original point. So, letโs do this for each
diagram. When we do so, we can see that
options (B) and (C) are definitely incorrect. And at first glance, option (D)
looks correct. But we can see that the
vertices have been reversed. In fact, the correct answer is
option (A). This represents the image of
the line segment ๐ด๐ต after a reflection in line ๐ฟ.
