Question

Parallelogram PQRS is rotated 270' counter clockwise about the origin to create parallelogram P'Q'R'S. Which tule describes this transformation? A-(x,y)—-> (-x,y) B-(x,y)—-> (y,x) C-(x,y)—-> (x,-y) D-(x,y)—-> (y,-x)

Answer 1

Answer

Option D is correct.

(x, y)—-> (y, -x)

Explanation

When a rotation of 270° counterclockwise about the origin is done on some coordinate, A (x, y), it transforms this coordinates into A' (y, -x). That is, we switch y and x, then add negative sign to x.

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