How do you know when to add in a problem?

When there is a + then you add. It is called a Plus Sign.

There is a special sign in math that you should have learned a long time ago. it is the legendary plus sign. it looks like this.

+

That is the plus sign. Respect it.

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