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Select the correct answer.


If quadrilateral ABCD rotates 90° counterclockwise about the origin, what are the coordinates of A′ in quadrilateral A′B′C′D′ ?

A.
(2, 1)

B.
(-2, -1)

C.
(-2, -2)

D.
(-2, 0)

Respuesta :

Answer:

A' (-1, 2)

Step-by-step explanation:

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

A' (-1, 2)

B' (1, -2)

C' (2, -2)

D' (0, -2)

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