In this video we look at a couple of examples of computing a limit as x approaches either positive infinity or negative infinity. The function in question in both cases involves an expression containing a square root / radical. Note that we have to be careful in particular as our limit approaches negative infinity depending on the type of root involved. #math #algebra #khanacademy #khan #geometry #education #montessori #homeschooling #functions #notation #organicchemistry #organicchemistrytutor #calculus