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Alg1 per2 5 18 transformations


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Alg1 per2 5 18 transformations

  1. 1. Transformations<br />Leslie Paytes<br />2009<br />
  2. 2. What is a transfomation?<br />A transformation changes the position or orientation of a figure<br />a transfomation changes the position or orientation of a figure<br />
  3. 3. What do you call the resulting shapes of a transformation?<br />The resulting shapes are called images of the original. Each image is read as prime, double prime, triple prime...<br />
  4. 4. Instruction- Vocabulary-Move Mathman to reveal definition<br />Translation<br />figure slides along a straight<br /> line without turning<br />Reflection<br />the figure flips across a line of reflection, <br />resulting in the mirror image<br />Rotation<br />figure turns around a fixed point<br />
  5. 5. Translation- moving in a straight line <br />without turning<br />Graph a triangle at <br />A(-3,2)B(-5,2)C(-5,5)<br />Graph the translation of <br />this triangle using <br />the rule<br /> (x',y')=(x+2, y-4)<br />
  6. 6. Reflection: Flip the image across a <br />line to create a mirror image of <br />the original<br />Graph an arrow<br />A(-4,1), B(-6,3) C(-5,6)<br />D(-3,6), E(-2,3)<br />Reflect over the line y=-2<br />
  7. 7. Rotation: the figure rotates around a<br /> fixed point<br />Rotate triangle ABC 180 degrees around the origin<br />A(-3,1)B(-7,1)C(-7,7)<br />Click on grid to see <br />rotated figure<br />