If y = 2x² – 4, what is its inverse?
◯ inverse of y is equal to negative square root of the quantity x plus 4 over 2 end quantity such that x is less than or equal to negative 4
◯ inverse of y is equal to negative square root of the quantity x plus 4 over 2 end quantity such that x is greater than or equal to negative 4
◯ inverse of y is equal to negative square root of the quantity x over 2 end quantity plus 4 such that x is greater than or equal to 0
◯ inverse of y is equal to negative square root of the quantity x over 2 end quantity plus 4 such that x is less than or equal to 0