Draw rotations in the coordinate plane.

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Presentation transcript:

Draw rotations in the coordinate plane. Geometry Lesson: 9 – 3 Rotation Objective: Draw rotations in the coordinate plane.

Rotations Rotate Counter clockwise for this lesson.

90 Degree Rotation

180 Degree Rotation

270 Degree Rotation

Triangle JKL is shown. What is the image of point J after a 270 degree rotation counterclockwise about the origin. (-3, 7) (-7, 3) (-7, -3) (7, -3)

Lesson: 9 – 4 Compositions of Transformations Geometry Lesson: 9 – 4 Compositions of Transformations Objective: Draw glide reflections and other compositions of isometries in the coordinate plane. Draw compositions of reflections in parallel and intersecting lines.

Composition of transformations A transformation of a transformation.

Glide Reflection The composition of a translation followed by a reflection in a line parallel to the translation vector.

Horizontal Translation

Rotation about the point of intersection of lines m and p.

Homework Worksheet Pg. 20 & 22 Worksheet Pg. 25 & 27