What is the answer? Answer with correct answer and no wrong ones

Find the values of the variables in the kite

Pls the last one and it has to be like number 6

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)