D?

1) x = -8

2) 16/x^2-1/y^2 = 0

=> either 4/x-1/y =0 or 4/x+1/y =

Consider 4/x-1/y = 0

=> x = 4y ---(1)

Also since they are 11 consecutive integers y-x = 10 ---(2)

y-4y = 10

or y = -10/3 (NOT an integer) so x =4y cannot be TRUE

Hence 4/x+1/y = 0

or x = -4y

Using (1) y - (-4y) = 10 or y = 2

Hence x = -8

_________________

"To dream anything that you want to dream, that is the beauty of the human mind. To do anything that you want to do, that is the strength of the human will. To trust yourself, to test your limits, that is the courage to succeed."

- Bernard Edmonds