document.write( "Question 910717: can any one help!
\n" ); document.write( "determine the rate of change of the function :\r
\n" ); document.write( "\n" ); document.write( "y = 4x^2 + x^2/2 + 6 when x = 1\r
\n" ); document.write( "\n" ); document.write( "thanks \n" ); document.write( "

Algebra.Com's Answer #552620 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
I assume you mean the derivative.
\n" ); document.write( " $\"y=4x%5E2%2B%281%2F2%29x%5E2%2B6\"$
\n" ); document.write( " $\"y=%289%2F2%29x%5E2%2B6\"$
\n" ); document.write( "So then,
\n" ); document.write( " $\"dy%2Fdx=2%289%2F2%29x\"$
\n" ); document.write( " $\"dy%2Fdx=9x\"$
\n" ); document.write( "So at $\"x=1\"$
\n" ); document.write( " $\"dy%2Fdx=9\"$
\n" ); document.write( " \n" ); document.write( "

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