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Reflections.

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Presentation on theme: "Reflections."— Presentation transcript:

1 Reflections

2 Reflect across the x-axis

3 Reflect across the x-axis
Change the sign of the y-value

4 Reflect across the x-axis

5 Reflect across the y-axis

6 Reflect across the y-axis
Change the sign of the x-value

7 Reflect across the y-axis

8 Reflect across y = x

9 Reflect across y = x Swap x and y

10 Reflect across y = x

11 Reflect across y = -x

12 Reflect across y = -x Swap and change both signs

13 Reflect across y = -x

14 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.

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

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

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

18 Rotations Rotations Link

19 Rotate 90 Clockwise about the Origin (Same as 270 Counterclockwise)
Change the sign of x and switch the order

20 Rotate 90° clockwise about the origin

21 Rotate 90° clockwise about the origin

22 Rotate 180 about the Origin
ONLY Change the signs

23 Rotate 180° about the origin

24 Rotate 180° about the origin

25 Rotate 270 Clockwise about the Origin (Same as 90 Counterclockwise)
Change the sign of y and switch the order

26 Rotate 270° clockwise about the origin

27 Rotate 90° counterclockwise about the origin

28 Homework Practice Worksheet


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