2. Notes Over 9 - 9 Reflections A _______________is a change of position or size of a figure.

3. Notes Over 9 - 9 Reflections A _______________is a line that you can put inside an object to where the part of the object on one side of the line is a reflection on the other side.

4. Notes Over 9 - 9 Reflections Draw all the lines of symmetry. 1. 2.

5. 3. Graph the image over the y-axis.

6. 4. Graph the image over the line y = 2. horizontal

7. Pg 487 9 – 9 #1 – 9, 10 – 28 Draw each figure. Draw all lines of symmetry. 1. rhombus 2. square

8. Pg 487 9 – 9 #1 – 9, 10 – 28 Draw each figure. Draw all lines of symmetry. 3. isosceles triangle

9. Pg 487 9 – 9 #1 – 9, 10 – 28 Graph each point and its image over the given line. 4. R(7, 1); x-axis R R’R’

10. Graph each point and its image over the given line. 5. S(5, - 1); y-axis S S’S’

11. Notes Over 9 - 10 Rotations A _______________is a change of position or size of a figure.

12. 1. Find the vertices of the image of  RST after a rotation of 90 o about the origin. Notes Over 9 - 10 Rotations R R’R’ S T S’S’ T’T’

13. Judging from appearance, tell whether the figure has rotational symmetry. If so, what is the angle of rotation. 2. 3.

14. Judging from appearance, tell whether the figure has rotational symmetry. If so, what is the angle of rotation. Notes Over 9 - 10 Rotations 4.

15. Pg 492 9 – 10 #1 – 11, 12 – 28 Each figure below is an image formed by rotating the figure at the right. What is each angle of rotation? 1. 2. 3.

16. Pg 492 9 – 10 #1 – 11, 12 – 28 Graph each point. Then rotate it the given number of degrees about the origin. What are the coordinates of the image? A A’A’ 4. A(5, 5); 90 o A ’ ( - 5, 5)

17. Pg 492 9 – 10 #1 – 11, 12 – 28 Graph each point. Then rotate it the given number of degrees about the origin. What are the coordinates of the image? B B’B’ 5. B(0, - 2); 180 o B ’ ( 0, 2)

18. Pg 492 9 – 10 #1 – 11, 12 – 28 Graph each point. Then rotate it the given number of degrees about the origin. What are the coordinates of the image? C C’C’ 6. C(2, 4); 180 o C ’ ( - 2, - 4)

19. Pg 492 9 – 10 #1 – 11, 12 – 28 Graph each point. Then rotate it the given number of degrees about the origin. What are the coordinates of the image? D D’D’ 7. D( - 1, - 3); 90 o C ’ ( 3, - 1)

20. Pg 492 9 – 10 #1 – 11, 12 – 28 Judging from appearance, tell whether each figure has rotational symmetry. If so, what is the angle of rotation? 8. 9.

21. Pg 492 9 – 10 #1 – 11, 12 – 28 Judging from appearance, tell whether each figure has rotational symmetry. If so, what is the angle of rotation? 10. 11.

22. Pg 492 9 – 10 #1 – 11, 12 – 28