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Warm up

Warm up. What are my new coordinates after this transformation? (4,6) (-2, 5) (2, 1)  ( x -2, y + 4) Give an example is coordinate notation for the following: move 6 unites down move 4 unites left reflection in the y-axis 90°rotation clockwise. Dilations . Vocabulary

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Warm up

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  1. Warm up • What are my new coordinates after this transformation? (4,6) (-2, 5) (2, 1)  ( x -2, y + 4) Give an example is coordinate notation for the following: move 6 unites down move 4 unites left reflection in the y-axis 90°rotation clockwise

  2. Dilations • Vocabulary • Dilation: is a transformation that changes the SIZE, but not the shape of a figure. • Scale Factor: tells how much larger or smaller the image of a dilation is than the preimage. remember this is the starting figure.

  3. Dilation • (x,y) (kx, ky) (x,y)(2x, 2y)

  4. Dilation • (x,y) (kx, ky) (x,y)(3x, 3y)

  5. Dilation • (x,y) (kx, ky) (x,y)(4x, 4y)

  6. Dilation • (x,y) (kx, ky) (x,y)(x, y)

  7. Dilation • (x,y) (kx, ky) (x,y)(x, y)

  8. Finding Scale Factor

  9. Finding Scale Factor

  10. Finding Scale Factor

  11. Homework • Page 749-750 #’s 2-16 evens

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