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Mathematics 15 Online
OpenStudy (anonymous):

How would the graph of y=2x^3-3x^2+1/x+3 look as its end behavior model?

OpenStudy (anonymous):

end behavior model? I don't know that...

OpenStudy (anonymous):

i found one real root -0.5 at y=0

OpenStudy (anonymous):

it looks ugly

OpenStudy (anonymous):

ok what does ugly look like a parabola

OpenStudy (anonymous):

thanks for tryimg

OpenStudy (anonymous):

Only -0.5 is the only real root...

OpenStudy (anonymous):

ok I think i found what the graph is thanks to both of you :)

OpenStudy (anonymous):

the graph looks like two parabolas

OpenStudy (anonymous):

welcome:)

OpenStudy (anonymous):

um how did you get -.5 though

OpenStudy (anonymous):

\[y = 2x ^{3}-3x ^{2}+1/x+3\] Multiply x on both sides \[xy = 2x ^{4}-3x ^{3}+1+3x\] \[y = (2x ^{4}-3x ^{3}+1+3x) / x\] \[y = [(2x+1)(x ^{3}-2x ^{2}+x+1)] / x\]

OpenStudy (anonymous):

So, \[x \neq 0\] and \[x=-1/2\]

OpenStudy (anonymous):

got it?

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