document.write( "Question 1165453: The link to my question is below:
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\n" ); document.write( "\n" ); document.write( "1. On what open interval or intervals (if any) does the derivative of the function graphed below have negative values?
\n" ); document.write( "2. On what open interval or intervals (if any) does the derivative of the function graphed below have positive values? \n" ); document.write( "

Algebra.Com's Answer #789945 by ikleyn(52781) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "(1)  where the function is decreasing AND has a derivative, there the derivative is NEGATIVE.\r\n" );
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document.write( "(2)  where the function is increasing AND has a derivative, there the derivative is POSITIVE.\r\n" );
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document.write( "Useful hint:  in the corner point, the function HAS NO derivative.\r\n" );
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