which equation is the inverse if y=x²-36?

A.
[tex]y =( + - ) \sqrt{x} + 6[/tex]
B.
[tex]y = ( + - ) \sqrt{x + 36} [/tex]
C.
[tex]y = ( + - ) \sqrt{x} + 36[/tex]
D.
[tex]y = ( + - ) \sqrt{ {x}^{2} + 36}[/tex]