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← Rotations of Figures in a Plane

Concept

Coordinate Rule for Dilations

When a point is dilated using a scale factor of

k

and a center of dilation at the origin, the coordinates of its image are found by multiplying the coordinates of the preimage by

k .

$(x, y) \to (k x, k y)$

The diagram shows how the image changes as the preimage and the scale factor change.

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