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Mathematics 11 Online
OpenStudy (anonymous):

Use graphs and tables to find the limit and identify any vertical asymptotes of the function.

OpenStudy (anonymous):

@SolomonZelman @johnweldon1993

OpenStudy (anonymous):

@johnweldon1993 PLEASE HELP LAST QUESTION @wio

OpenStudy (anonymous):

@SolomonZelman @SolomonZelman

OpenStudy (anonymous):

@johnweldon1993 @johnweldon1993

OpenStudy (johnweldon1993):

Vertical asymptotes occur when the denominator of a function = 0

OpenStudy (anonymous):

and this one does not, which means there are none right?

OpenStudy (johnweldon1993):

How can you come to that conclusion? It's not saying does (as it stands) it equal 0? it says when can it equal 0? so here, what value of 'x' would make the denominator = 0?

OpenStudy (anonymous):

4

OpenStudy (johnweldon1993):

Right, so this will have a vertical asymptote of x = 4 now, for the limit Notice how this says limit as x approaches 4 from the negative (left) side Basically saying, if we were to plug in numbers SO CLOSE to 4 but not quite 4 (3.9, 3.99, 3.999, 3.999999999) etc... what would the limit come out to?

OpenStudy (anonymous):

im not sure

OpenStudy (johnweldon1993):

try it out (if you cant graph it that is) manually plug in 3.9999999 for 'x' into your calculator and see what you get

OpenStudy (anonymous):

for x?

OpenStudy (anonymous):

so the limit is 4?

OpenStudy (johnweldon1993):

\[\large \frac{3.999999}{3.999999 - 4} = ?\]

OpenStudy (anonymous):

im getting a weird number @johnweldon1993

OpenStudy (anonymous):

i only have 30 more seconds to solve this

OpenStudy (johnweldon1993):

you should be...you should get an EXTREMELY large negative number...also known as negative infinity!

OpenStudy (anonymous):

yeah it ended, but im just curious to know what the answer is

OpenStudy (anonymous):

so there is no limit?

OpenStudy (johnweldon1993):

I just gave it to you As you saw...you probably got something along the lines of -3,999,999 It will just get bigger and bigger, but stay negative....the limit approaches negative infinity

OpenStudy (anonymous):

thnaks!

OpenStudy (anonymous):

can you help me with one more?

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