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Mathematics 19 Online
OpenStudy (anonymous):

tell whether f(x)=-x^3+7x+4 is an even or odd funtion , and describe its symmetry

OpenStudy (amistre64):

f(-x) doesnt equal f(x) so it aint even if f(-x) = - f(x) then its odd and mirrors about the origin it its neither, then its well, neither

OpenStudy (amistre64):

http://www.wolframalpha.com/input/?i=-x^3%2B7x%2B4 this is a neither case

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