A.

A(1, -1), B(-1, -2), C(0, -1)

B.

A(-1, 1), B(1, 2), C(0, 1)

C.

A(-1, -1), B(-2, -1), C(-1, 0)

D.

A(1, 1), B(2, -1), C(1, 0)

E.

A(1, 2), B(-1, 1), C(0, 1)

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1 Answer

Answer B. The method is to use y=-x and x=-y to transform (x,y) to (-y,-x). So for point B', for example, which has x=-2 and y=-1, so the transformation is (-(-1),-(-2)) which is B(1,2).

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