End Warm Up Write rules for the following Reflection across the x-axis

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Rotations Warm Up Lesson Presentation Lesson Quiz

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Presentation transcript:

End Warm Up Write rules for the following Reflection across the x-axis Reflection across the line y = x Describe the transformation: (x,y)  (-x, y) 10 minutes End

Answers Write rules for the following Reflection across the x-axis (x,y)  (x, -y) Reflection across the line y = x (x,y)  (y, x) Describe the transformation: (x,y)  (-x, y) Reflection across the y-axis

Rotations

Reflection Definition: A rotation is a transformation that turns or spins a figure about a fixed point, often the origin. *** All rotations are counterclockwise about the origin unless otherwise stated***

Counter Clockwise

Rotations Investigation Rotations about the origin have similar algebraic rules as reflections. A rotation, or turning motion, is determined by a point called the center of the rotation and a directed angle of rotation.

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