Alvin is heating a solution in his chemistry lab. The temperature of the solution starts at 14°C. He turns on the burner and finds that the solution's temperature increases by 2°C every minute. This graph shows the temperature change. 35 30 25 Temperature (°C) 20 10 5 2 3 4 5 6 7 Time (minutes) Which point is on his graph? O A. (22,4) B. (1994) C. (3,20) D. (5,21)

The answers are 20,30,80,180,960,890,1230,4560. on the first row

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