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Unformatted text preview: we get closer and closer to the yvalue 4, we can say 4 ) ( lim 2 = x f x When there is no + or on the number x is approaching, it means when x approaches the number from BOTH sides. For g(x) ) ( lim 2 x g x + does not exist because the yvalues decrease without bound. We do not have a limit for ) ( x g at 2, but we may describe the behavior by looking at each side: We write: = ) ( lim 2 x g x and = + ) ( lim 2 x g x and  are descriptions that tells us why the limit DOES NOT EXIST . This is not an actual limit. We would also say the line x = 2 is a vertical asymptote ....
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 Spring '10
 delarosa

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