1. The problem statement, all variables and given/known data Determine the end behaviour of the function ƒ(x) = √(x2+x) - x 2. Relevant equations Not quite sure, but I suppose f'(x) would be useful? 3. The attempt at a solution Essentially what I did was take the derivative of f(x), however I was unsure as to how one would take the limit of the derivative as x approaches positive or negative infinity (to see if f(x) has any asymptotes). Thanks in advance for any help, sorry if I explained this poorly.