1. Warm Up

2. True or False? 1.A reflection preserves angle measure. 2.A reflection preserves segment length. 3.A reflection preserves orientation. False True

3. True or False? 4.A reflection preserves the slopes of the lines. 5.A reflection preserves the area of polygons. True False

4. Transformations on a Coordinate Plane

5. Reflections: About the x-axis: About the y-axis:

6. A´A´ A´´ A

7. Give the coordinates for the indicated point. 1. is reflected in the x-axis 2. is reflected in the y-axis

8. Give the coordinates for the indicated point. 3. is reflected in the x-axis then reflected in the y-axis.

9. translations: Can be described using coordinate notation: and are constants. Each point shifts units horizontally and units vertically.