Dan owns nine dvds. his brother mark has three more dvds and dan has. other sister, marsha, has more dvds in either of the brothers. together, the three have 35 dvds. how many dvds does marshall have?

I am guessing you meant how many CD's does Marsha have, Marsha would have 23 DVD's because 9+3=12 - 35= 23

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