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Sagot :
Answer: Rotate the point 180 degrees around the origin
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Explanation:
Consider the point (2,3). Applying a dilation of scale factor -1 means we multiply each coordinate by -1. That moves us from (2,3) to (-2,-3). This rotates the point 180 degrees about the origin. It can be done clockwise or counterclockwise.
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Extra Side Notes:
- The 180 degree rotation rule is [tex](x,y) \to (-x,-y)[/tex]
- The three points (x,y), (-x,-y) and (0,0) all are on the same straight line.
- The preimage and image are the same size, since the absolute value of the scale factor is 1. The rotation preserves the size.
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