1. Warm-up

2. Review Homework

3. Reflections

4. Reflect across the x-axis

5. Reflect across the x-axis
Change the sign of the y-value

6. Reflect across the x-axis

7. Reflect across the y-axis

8. Reflect across the y-axis
Change the sign of the x-value

9. Reflect across the y-axis

10. Reflect across y = x

11. Reflect across y = x
Swap x and y

12. Reflect across y = x

13. Reflect across y = -x

14. Reflect across y = -x
Swap and change both signs

15. Reflect across y = -x

16. Lines of Symmetry
A line of symmetry is a line you can use to fold a figure so that both halves match up perfectly. This means the figure is symmetrical (balanced/matching) on both sides of the line.

17. Lines of Symmetry
How many lines of symmetry does the polygon have? 3

18. Lines of Symmetry
How many lines of symmetry does the shape have? 2

19. Lines of Symmetry
How many lines of symmetry does the shape have? 5

20. Homework
Practice Worksheet