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5-7

5-7. Transformations. Warm Up. Problem of the Day. Lesson Presentation. Course 3. 5-7. Transformations. Course 3. Warm Up. Determine if the following sets of points form a parallelogram. 1 . (–3, 0), (1, 4), (6, 0), (2, –4). yes. 2 . (1, 2), (–2, 2), (–2, 1), (1, –2). no.

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5-7

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  1. 5-7 Transformations Warm Up Problem of the Day Lesson Presentation Course 3

  2. 5-7 Transformations Course 3 Warm Up Determine if the following sets of points form a parallelogram. 1. (–3, 0), (1, 4), (6, 0), (2, –4) yes 2. (1, 2), (–2, 2), (–2, 1), (1, –2) no 3. (2, 3), (–3, 1), (1, –4), (6, –2) yes

  3. 5-7 Transformations Course 3 Problem of the Day How can you move just one number to a different triangle to make the sum of the numbers in each triangle equal? (Hint: There do not have to be exactly 3 numbers in each triangle.) Move the 9 to the first triangle.

  4. 5-7 Transformations Course 3 Learn to transform plane figures using translations, rotations, and reflections.

  5. 5-7 Transformations Course 3 Vocabulary transformation translation rotation center of rotation reflection image

  6. 5-7 Transformations Course 3 When you are on an amusement park ride, you are undergoing a transformation. Ferris wheels and merry-go-rounds are rotations. Free fall rides and water slides are translations. Translations, rotations, and reflectionsare type of transformations.

  7. 5-7 Transformations Course 3 The resulting figure or image, of a translation, rotation or reflection is congruent to the original figure.

  8. 5-7 Transformations Course 3 Additional Example 1A & 1B: Identifying Transformations Identify each as a translation, rotation, reflection, or none of these. B. A. rotation reflection

  9. 5-7 Transformations Course 3 Additional Example 1C & 1D: Identifying Transformations Identify each as a translation, rotation, reflection, or none of these. C. D. none of the these translation

  10. 5-7 Transformations A’ C’ D’ A’ B’ B’ C’ Course 3 Try This: Example 1A & 1B Identify each as a translation, rotation, reflection, or none of these. A. B. B A A C D C B reflection translation

  11. 5-7 Transformations Course 3 Try This: Example 1C & 1D Identify each as a translation, rotation, reflection, or none of these. E’ C. D. A’ F’ D’ A B’ B C’ F C D none of these rotation E

  12. 5-7 Transformations A’ B’ C’ Course 3 Additional Example 2A: Drawing Transformations Draw the image of the triangle after the transformation. A. Translation along AB so that A’ coincides with B A B C

  13. 5-7 Transformations B’ C’ A’ Course 3 Additional Example 2B: Drawing Transformations Draw the image of the triangle after the transformation. B. Reflection across BC. A B C

  14. 5-7 Transformations C’ A’ B’ Course 3 Additional Example 2C: Drawing Transformations Draw the image of the triangle after the transformation. C. 90° clockwise rotation around point B A B C

  15. 5-7 Transformations B’ A. Translation along DE so that E’ coincides with D C’ F’ A’ D’ E’ Course 3 Try This: Example 2A Draw the image of the polygon after the transformation. B C A F D E

  16. 5-7 Transformations B. Reflection across CD. B’ C’ A’ F’ D’ E’ Course 3 Try This: Example 2B Draw the image of the polygon after the transformation. B C A D F E

  17. 5-7 Transformations D’ C’ B’ F’ E’ A’ Course 3 Try This: Example 2C Draw the image of the polygon after the transformation. C. 90° counterclockwise rotation around point C B C A F D E

  18. 5-7 Transformations Course 3 Additional Example 3A: Graphing Transformations Draw the image of a triangle with vertices of (1, 1), (2, –2 ), and (5, 0) after each transformation. A. 180° counterclockwise rotation around (0, 0)

  19. 5-7 Transformations Course 3 Additional Example 3B: Graphing Transformations Draw the image of a triangle with vertices of (1, 1), (2, –2 ), and (5, 0) after each transformation. B. Translation 5 units left

  20. 5-7 Transformations Course 3 Additional Example 3C: Graphing Transformations Draw the image of a triangle with vertices of (1, 1), (2, –2 ), and (5, 0) after each transformation. C. Reflection across the x-axis

  21. 5-7 Transformations Course 3 Try This: Example 3A Draw the image of a shape with vertices of (1, –2), (3, 2), (7, 3), and (6, –1) after each transformation. A. 180° clockwise rotation around (0, 0) y 2 x –2

  22. 5-7 Transformations Course 3 Try This: Example 3B Draw the image of a shape with vertices of (1, –2), (3, 2), (7, 3), and (6, –1) after each transformation. B. Translation 10 units left y 2 x –2

  23. 5-7 Transformations Course 3 Try This: Example 3C Draw the image of a shape with vertices of (1, –2), (3, 2), (7, 3), and (6, –1) after each transformation. C. Reflection across the x-axis y 2 x –2

  24. 5-7 Transformations Course 3 Lesson Quiz: Part 1 Given the coordinates for the vertices of each pair of quadrilaterals, determine whether each pair represents a translation, rotation, reflection, or none of these. 1. (2, 2), (4, 0), (3, 5), (6, 4) and (3, –1), (5, –3), (4, 2), (7, 1) translation 2. (2, 3), (5, 5), (1, –2), (5, –4) and (–2, 3), (–5, 5), (–1, –2), (–5, –4) reflection

  25. 5-7 Transformations Course 3 Lesson Quiz: Part 2 Given the coordinates for the vertices of each pair of quadrilaterals, determine whether each pair represents a translation, rotation, reflection, or none of these. 3. (1, 3), (–1, 2), (2, –3), (4, 0) and (1, –3), (–1, 2), (–2, 3), (–4, 0) none 4. (4, 1), (1, 2), (4, 5), (1, 5) and (–4, –1), (–1, –2), (–4, –5), (–1, –5) rotation

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