Identify the oblique asymptote of
f(x) = (3x^2+2x-5)/(x-4)
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OpenStudy (anonymous):
ok now we have one
divide
OpenStudy (anonymous):
you can use polynomial division or synthetic division. you will get a quotient and a remainder
the quotient is the oblique asymptote (in fact you and ignore the remainder when you divide)
OpenStudy (anonymous):
so you know how to divide \(3x^2+2x-5\) by \(x-4\) ?
OpenStudy (anonymous):
* do you know how...
OpenStudy (anonymous):
no
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OpenStudy (anonymous):
then that is a problem because it is very hard to write long division here
OpenStudy (anonymous):
but you only need first two steps so maybe we can do it
OpenStudy (anonymous):
can i use syntheitc division
OpenStudy (anonymous):
yes for sure
i recommend it
OpenStudy (anonymous):
ok i can do that
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OpenStudy (anonymous):
3 2 -5
4____8______
3 10
OpenStudy (anonymous):
you only need the first two steps, you do not need the remainder. this says you get \(3x+10+\frac{r}{x-4}\) and your oblique asymptote is therefor \(y=3x+10\)