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Chapter Nine
Transformations and Symmetry
Term | Definition |
---|---|
line of reflection | a line through a figure that separates the figure into 2 mirror images |
translation | a transformation that moves all points of a figure the same distance in the same direction |
translation vector | the vector in which a translation maps each point to its image |
transformation | in a plane, a mapping for which each point has exactly one image point and each image point has exactly one pre-image point |
pre-image | the graph of an object before a transformation |