Question

Which of the following statements is true of a reflection?

-It is an isometry.
-It slides a plane.
-The transformation is done over a line of reflection.
-It flips a plane about a fixed line.
I-t changes the size of the figure being reflected.

Answer 1

I think the correct answers from the choices listed above are the first and the fourth option. The statements that are true about a reflection would be that it is an isometry and the it flips a plane about a fixed line. A reflection over a line k (notation rk) is a transformation in which each point of the original figure (pre-image) has an image that is the same distance from line k.