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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). 4. Write a rule to describe the transformation: Z (5, 1) E (10, -4) N (-2, 8). Review Homework. Reflections. Reflections. A reflection is a FLIP over a line.

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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) 4. Write a rule to describe the transformation: Z (5, 1) E (10, -4) N (-2, 8)

  2. Review Homework

  3. Reflections

  4. Reflections A reflection is a FLIP over a line.

  5. Also a reflection has: The same DISTANCE from a central line. The same SIZE as the original image.

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

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

  8. Reflect across the x-axis

  9. Reflect across the y-axis

  10. You Try!Reflect over the x-axis

  11. You Try!Reflect over the y-axis

  12. Practice Reflections Worksheet

  13. More Reflections • Positive Diagonal Line • Negative Diagonal Line • Horizontal Line • Vertical Line

  14. Reflect across y = x Swap x and y

  15. Reflect across y = x

  16. Reflect across y = x

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

  18. Reflect across y = -x

  19. Reflect across y = -x

  20. Reflect across y = x

  21. Reflect across y = x

  22. Practice Reflections Worksheet

  23. Homework Reflections Worksheet *Write Points for the Pre Image & Image* DON’T FORGET TO LABEL

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