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Mathematics 18 Online
OpenStudy (anonymous):

Determine whether f(x) represents a polynomial function. If possible, identify the degree and type of polynomial function. f(x)= 5x^3-7x^2+9x-3

OpenStudy (anonymous):

I believe it is a linear function with a 3rd degree

OpenStudy (anonymous):

this is one for wolfram http://www.wolframalpha.com/input/?i=y+%3D+5x%5E3-7x%5E2%2B9x-3

OpenStudy (anonymous):

That's not what the question is asking =l

OpenStudy (anonymous):

yes it is a 3rd degree or a cubic polynomial

OpenStudy (anonymous):

why cubic and not linear or even quadratic?

OpenStudy (anonymous):

http://en.wikipedia.org/wiki/Cubic_function

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