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Warm up

Warm up. A function is even. Point A(-3, 4) is on the even function. Name another point. A function is even. Point B(9, 2) is on the even function. Name another point. Reflect C(-5, -3) over the y-axis. Reflect D(2, -4) over the x-axis. Reflect E(-12, 4) over y = -x. (3 , 4). (- 9, 4).

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Warm up

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  1. Warm up • A function is even. Point A(-3, 4) is on the even function. Name another point. • A function is even. Point B(9, 2) is on the even function. Name another point. • Reflect C(-5, -3) over the y-axis. • Reflect D(2, -4) over the x-axis. • Reflect E(-12, 4) over y = -x. (3, 4) (-9, 4) C’(5, -3) D’(2, 4) E’(-4, 12)

  2. Review Homework

  3. Skills Check Are you ready?

  4. Rotations

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

  6. Rotate 90° clockwiseabout the origin

  7. Rotate 90° clockwiseabout the origin

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

  9. Rotate 90° counterclockwiseabout the origin

  10. Rotate 90° counterclockwiseabout the origin

  11. Rotate 180about the Origin ONLY Change the signs

  12. Rotate 180° about the origin

  13. Rotate 180° about the origin

  14. Rotational Symmetry Any figure that can be turned or rotated less than 360° about a fixed point so that the figure looks exactly as it does in its original position.

  15. Ambigrams – Look the same right side up and upside down

  16. Rotational Symmetry in the parking lot

  17. Which figures have rotational symmetry? For those that do, describe the rotation that map the figure onto itself. Regular pentagon Rhombus Isosceles triangle NO NO

  18. Classwork Rotations Practice Worksheet

  19. Homework Rotations HW Worksheet

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