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Triangle KLM is rotated 270° clockwise about the origin to create triangle K'L'M'. Which rule describes the transformation that is applied to triangle KLM?

a. (x,y) to (y,-x)
b. (x,y) to (-x,-y)
c. (x,y) to (-x,y)
d. (x,y) to (-y,x)

Answer :

Final answer:

The transformation rule for rotating triangle KLM by 270° clockwise about the origin, resulting in triangle K'L'M', is option d: (x,y) to (-y,x).

Explanation:

When triangle KLM is rotated 270° clockwise about the origin to create triangle K'L'M', we can determine the transformation rule by considering the effects of the rotation on the coordinates of a point (x, y).

A 270° clockwise rotation is the same as a 90° counterclockwise rotation when looking at the coordinate plane. For a 90° counterclockwise rotation, the rules are:

  • Coordinates (x, y) become (-y, x).

This rule switches the x and y coordinates and reverses the sign of the former x-coordinate to map it onto the new y-coordinate. Hence, the correct option is d. (x,y) to (-y,x).

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