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6-67.

was reflected across the -axis, and then that image was rotated clockwise about the origin to result in , shown at right. Determine the coordinates of points and of the original triangle.

Triangle A prime, B prime, C prime is, graphed. A prime (negative 4, comma negative 2), B prime (negative 2, comma negative 6), and C prime (negative 5, comma negative 4).

Perform the transformations opposite and in reverse.
Rotate the given triangle counterclockwise  and then reflect it across the -axis.