Page 77 - Math Course 2 (Book 2)
P. 77

Transformations: Reflected Images





                Your Turn!


               Reflecting a Figure in a Line

                 Draw the reflected image of quadrilateral ABCD in line n.

                 A.                           B.                      C.                     D.













                   Answer

               Reflection on a Coordinate Plane


                 COORDINATE GEOMETRY Quadrilateral LMNP has vertices L(–1, 1), M(5, 1), N(4, –1), and P(0, –1). Graph
                 LMPN and its image under reflection in the x-axis. Describe what happens to the coordinates of each vertex
                 compared to the coordinates of its image.

                 A. x-coordinates and y-coordinates are opposite.
                 B. x-coordinate is opposite; y-coordinate stays the same.
                 C. x-coordinate stays the same; y-coordinates are opposite.
                 D. x-coordinate becomes y-coordinate and y-coordinate
                     becomes x-coordinate.
                   Answer



                 Graph LMPN and its image under reflection in the origin. Describe
                 what happens to the coordinates of each vertex compared to the
                 coordinates of its image.

                 A. x-coordinates and y-coordinates are opposite.
                 B. x-coordinate is opposite; y-coordinate stays the same.
                 C. x-coordinate stays the same; y-coordinates are opposite.
                 D. x-coordinate becomes y-coordinate and y-coordinate
                     becomes x-coordinate.


                   Answer
                 Graph LMPN and its image under reflection in the line y = x. Describe
                 what happens to the coordinates of each vertex compared to the
                 coordinates of its image.

                 A. x-coordinates and y-coordinates are opposite.
                 B. x-coordinate is opposite; y-coordinate stays the same.
                 C. x-coordinate stays the same; y-coordinates are opposite.
                 D. x-coordinate becomes y-coordinate and y-coordinate becomes
                     x-coordinate.

                   Answer



                                                                                                                  69
   72   73   74   75   76   77   78   79   80   81   82