If a point is at coordinates (x , y), then move it to (-x, -y).
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multiply each coordinate by -1For Example:Starting coordinates ---> (5,3)Multiply by -1 ---> (5,3) * -1Final answer ---> (-5,-3)
The same as 180 degrees clockwise. What do you mean "the answer to"?
When you rotate it around a point found in the middle of the figure 180 degrees. For example, H does have rotational symmetry however, E doesn't
Change the sign: from + to - or - to +
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