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Need help with this counterclockwise rotation

Need help with this counterclockwise rotation-example-1
User Mcernak
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1 Answer

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Answer:
(-2,1)

Explanation:

It is important to remember that a rotation is a transformation in which the shapes and sizes do not change, but the object can be turned in different directions.

By definition, the rule for 180° counterclockwise rotation is this:


(x,y)
(-x,-y)

Therefore, we know that the image of the point
P=(2,-1) under a 180° counterclockwise rotation is:


(2,-1)
(-2,1)

User IceWhisper
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