Thursday, March 15, 2012

How Do We Graph Rotations?

Unlike rotation and reflection, where you are just sliding the figure around the graph, Rotation involves rotating not only the figure, but the graph as well. In Rotation, there are three different ways you can describe a rotation:
  1. An angle of rotation.
  2. A direction: Clockwise or Counterclockwise (If for example the question does not specify which way to rotate the figure, you always rotate it Counterclockwise).
  3. A center of rotation.
There are three different ways to rotate a figure on the graph:
  1. 90 Degrees; (A,B)----> (-B,A)
  2. 180 Degrees; (A,B)---> (-A,-B)
  3. 270 Degrees; (A,B)---->(B,-A)

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