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geometric transformation
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a mapping between two sets of points such that each points in the preimage has a unique image and that each point in the image has exactly one preimage
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terms list
geometric transformation
a mapping between two sets of points such that each points in the preimage has a unique image and that each point in the image has exactly one preimage
preimage
each point in the preimage has a unique image
translation
a slide in a horizontal or vertical direction
reflection
a flip across a line, new figure is a mirror image of the original
rotation
a turn around a point called center of rotation
rotational symmetry
if there is a rotation of less than 360 degrees in which the image and preimage coincide under the rotation
dilation
an expanding or contracting of a geometric shape using a scale factor. Shape, location, orientation remain the same
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