How many hours were worked by an employee who arrived at 8: 10 a. m. and departed at 12: 10 p. m.? (a) 4 hours (b) 5 hours (c) 4 hours and 10 minutes (d) none of these. (p. 347)?

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