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Warm up

Warm up. Translate (x – 9, y + 8) B (-9, 12) A (-12, -4) T (22, -19). B’ (-18, 20). A’ (-21, 4). T’ (13, - 11). Review Homework. You can do this. It’s time for another skills check. Don’t be scared. Reflections. Reflect across the x-axis. Change the sign of the y-value.

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Warm up

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  1. Warm up Translate (x – 9, y + 8) • B (-9, 12) • A (-12, -4) • T (22, -19) B’ (-18, 20) A’ (-21, 4) T’ (13, -11)

  2. Review Homework

  3. You can do this. It’s time for another skills check. Don’t be scared.

  4. Reflections

  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 Change the sign of the x-value

  8. Reflect across the y-axis

  9. Reflect across y = x Swap x and y

  10. Reflect across y = x

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

  12. Reflect across y = -x

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

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

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

  16. ClassworkReflections by Mira Worksheet

  17. ClassworkReflections by Hand Worksheet

  18. Homework Reflections & Translations Beware: HW ahead

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