Evaluate each limit. If the limit does not exist due to a vertical asymptote, then add an approach statement stating if
As in all limits in which
or , compare only the highest power in the numerator and denominator.
Careful! This one can be deceptive. Just because this is a one-sided limit, does not mean that the limit
or . That will only be the case if there is a zero in the denominator that cannot be cancelled out.
This limit is asking you to determine whether the function approaches its vertical asymptote at
in a positive or negative direction when looked at from the left.
Choose a value a little to the left of
and evaluate. You only need to determine if the limit is positive or negative.
= negative value
Limit does not exist, but