But that limit can't be the maximum value because the function never gets to that. So you could say, well, let's get a little closer here. Maybe this number right over here is 5. So you could say maybe the maximum value is 4.9. But then you could get your x even closer to this value and say your y be 4.99 or 4.999. You could keep adding another 9. So there is no maximum value.