Polygons ABDC and A′B′D′C′ are shown on the following coordinate grid:
What set of transformations is performed on ABDC to form A′B′D′C′?
A 90-degree counterclockwise rotation about the origin followed by a translation 1 unit to the left
A translation 1 unit to the left followed by a 90-degree counterclockwise rotation about the origin
A 270-degree counterclockwise rotation about the origin followed by a translation 1 unit to the left
A translation 1 unit to the left followed by a 270-degree counterclockwise rotation about the origin
The answer would be A. Using point C and C' as a guide, the first rotation would get it to point (1,3) and then the one point to the left would get it to the correct point, (1,2)
