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Published bySofia Berry Modified over 3 years ago

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TRANSFORMATIONS SPI 3108.3.3 SPI 3108.4.10

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TYPES OF TRANSFORMATIONS Reflection Reflection – The flip of a figure over a line to produce a mirror image. Rotation Rotation – A geometric turn of a figure around a fixed point. Translation Translation – The slide of a figure from one position to another. Dilation Dilation – A transformation that alters the size of a figure, but not its shape.

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Preimage to Image A B C D Each point on the original figure is called the Preimage B AC D Its matching point on the corresponding figure is called its image.

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Reflections REFLECTION – The flip of a figure over a line to produce a mirror image.

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Coordinate Reflection The triangle is reflected about the x-axis. Each point is equal distance from the x-axis.

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Coordinate Translation Each point is translated 3 points to the right and 5 points up.

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Rotation D D A A P 90 0 ROTATION – A geometric turn of a figure around a fixed point.

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Translation Slide TRANSLATION– The slide of a figure from one position to another.

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Dilation Dilation is altering the size of the figure by k = n. The dilation of this figure is k = 3. The image is 3 times bigger than the preimage. DILATION – A transformation that alters the size of a figure, but not its shape.

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Coordinate Dilation Each point is multiplied by k to find the dilation.

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