Aboat can hold 45 people. 27 more people can fit on the boat. how many people are one the boat now?

The answer is since the boat can hold 45 people then 27 more people had add to the boat so now you need to add them to find your answer. The boat can hold 72 people. 

The answer would he -4,-2 because the points are just on the opposite side. since the x axis is +4 it's going to he -4 and since the y axis is -2 it stays there because whaen rotated it stays in the third quadrant