Unformatted text preview: ause a hole in the graph at hole by computing A factor of the form appears in the numerator only, then the graph will have an x- . Find the y-coordinate of the . The value of the limit will be the y-coordinate of the hole.
will cause an asymmetrical vertical asymptote at . Determine which side goes up and which side goes down by studying the sign behavior of
. (Use the
factored form of
to make a sign chart for
.) Describe the up & down behavior at the
asymptote using limit notation and the infinity s ymbol, . For example: . If the graph goes...
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