document.write( "Question 259878: Determine algebraically whether each function is even, odd, or neither.\r
\n" ); document.write( "\n" ); document.write( "a.f(x)=3x4\r
\n" ); document.write( "\n" ); document.write( "b.f(x)=7x3
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Algebra.Com's Answer #191383 by nerdybill(7384)\"\" \"About 
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a.f(x)=3x^4
\n" ); document.write( "f(-x) = 3(-x)^4
\n" ); document.write( "f(-x) = 3x^4
\n" ); document.write( "This is an \"even\" function
\n" ); document.write( "(notice it did not change the sign of the function. It stayed positive.)
\n" ); document.write( ".
\n" ); document.write( "b.f(x)=7x^3
\n" ); document.write( "f(-x)=7(-x)^3
\n" ); document.write( "f(-x)=-7x^3
\n" ); document.write( "This is an \"odd\" function
\n" ); document.write( "(notice it changed to the opposite sign from positive to negative)
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