1. Reflections

2. Reflection
Mirror image over the x axis or the y axis

3. Reflection
Size does not change, shape may or may not change in orientation.

4. Reflected over y axis

5. Reflected over x axis

6. Reflected over y axis
y coordinates stay the same

7. Reflected over y axis
x coordinates are opposite

8. Reflected over x axis

9. Reflected over x axis
x coordinates stay the same

10. Reflected over x axis
y coordinates are opposite

13. Reflect over y axis

14. Reflect over x axis

15. A B C D

16. This Guy is a Jerk!

17. What do you notice about your new coordinates?
If reflecting over the y axis, the y coordinates will stay the same and the x coordinates will be opposite
The same is true for reflecting over the x axis. The x coordinates will stay the same and the y coordinates will be opposite.

18. Write the coordinates of the new shape reflected over the x axis
Original Shape:
A (-2, 5)
B (-5, 5)
C (-3, 2)
Reflected Shape
A’ ( , )
B’ ( , )
C’ ( , )

19. Write the coordinates of the new shape reflected over the y axis
Original Shape:
A (-2, 5)
B (-5, 5)
C (-3, 2)
Reflected Shape
A’ ( , )
B’ ( , )
C’ ( , )

20. What if the shape is located on the line of reflection?

21. Reflect over the y axis

22. Reflect over the x axis

23. Reflecting Over Other Lines
x = 4
Note: When reflecting over a line that is not the x or y axis, we cannot use the opposite coordinate rule.

24. Reflecting Over Other Lines
y = -2
Note: When reflecting over a line that is not the x or y axis, we cannot use the opposite coordinate rule.

25. Closure
What is the difference between a translation and a reflection?

26. Closure
Is the resulting transformation of a shape similar or congruent?