Bell Ringer: List the domain and range of the relation below.

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Presentation transcript:

Bell Ringer: List the domain and range of the relation below.

(PSSA) TRANSFORMATIONS LEQ: How do you translate objects on a coordinate plane?

Rotations Picture: Definition: A transformation in which a figure is turned about a fixed point, called the “center of rotation.” The size or shape is not changed.

Rotations Some rotations are turned about a vertex: EX) Rotate 180 degrees about C A B C

Rotations Some rotations are turned about a vertex: EX) Rotate 90 degrees clockwise about C A B C

Rotations Some rotations are turned about the origin: EX) Rotate 180 degrees about the origin A B C (x, y) -> (-x, -y)

Rotations Some rotations are turned about the origin: EX) Rotate 90 degrees about the origin A B C (x, y) -> (y, -x)

Rotations Some rotations are turned about the origin: EX) Rotate 270 degrees about the origin A B C (x, y) -> (-y, x)

Rotations Stations

One More: Dilations A transformation that enlarges or reduces a figure by a scale factor relative to a center point. The center point is called the center of dilation.

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Quiz Tomorrow! Translations (slides) Reflections (flip) Rotations (turn) Dilations (resize)