The first play of a football game resulted in a loss of 12&1/2 yards. then a penalty resulted in another loss of 5 yards. What is the total loss or gain?

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)