for which values of a, b is the system consistent? are there values for which there is a unique sol'n?
1 a b 1
1 1 0 a
1 0 1 b
(note that the last column is the b vector in [a|b]).

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