Question

Need help with this counterclockwise rotation

Answer 1

Answer: $(-2,1)$

Step-by-step 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:

 $(2,-1)$→ $(-2,1)$