document.write( "Question 1129743: when is the polynomial x^5-4x^4-7x^3+14x^2-44x+120 that represents your roller coaster decreasing and increasing. Write the answer in interval notation \n" ); document.write( "

Algebra.Com's Answer #746333 by MathLover1(20849) $\"\"$ $\"About$

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\n" ); document.write( "\n" ); document.write( "function has local maximum and minimum where first derivative is equal to zero:\r
\n" ); document.write( "\n" ); document.write( "and it is $\"5+x%5E4+-+16+x%5E3+-+21+x%5E2+%2B+28+x+-+44=0\"$ at\r
\n" ); document.write( "\n" ); document.write( " $\"x=+-1.89\"$
\n" ); document.write( " $\"x=4.03\"$ \r
\n" ); document.write( "\n" ); document.write( "so, function is
\n" ); document.write( " $\"highlight%28Increasing%29\"$ on: ( $\"-infinity\"$ , $\"-1.89\"$ ),( $\"4.03\"$ , $\"infinity\"$ )\r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28Decreasing%29\"$ on: ( $\"-1.89\"$ , $\"4.03\"$ ) \n" ); document.write( "

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