Triangle RST has vertices R(0,-3), S(7,-3), and T(5,-6). Find the vertices of triangle R'S'T' after a rotation 90° counterclockwise about the origin.

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Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c