Iam confused about how to solve letter d in activity 1 on the file below

In this chart, you fall 90-45=45 feet over three seconds.  Your velocity is distance divided by time, so your velocity is 45/3=15 feet per second.

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