document.write( "Question 997691: Please will someone help me I can't get this question correct. It's determining where the function is increasing/decreasing. I set their derivative to zero but it isn't helping.\r
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Algebra.Com's Answer #615665 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
\"k%28x%29=1%2F%28x%5E2%2B5%29\"...this function is defined for all \"x\" except one that makes denominator equal to zero and that is \"x=sqrt%285%29\" or approximately \"x=2.24\"\r
\n" ); document.write( "\n" ); document.write( "max\"1%2F%28x%5E2%2B5%29+=+1%2F5\" at \"x+=+0\", in your case \"a\"\r
\n" ); document.write( "\n" ); document.write( "so,
\n" ); document.write( "from \"-infinity\" to \"a\" function is increasing\r
\n" ); document.write( "\n" ); document.write( "and from \"a\" to \"infinity\" function is decreasing\r
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\n" ); document.write( "\n" ); document.write( "interval where function is increasing is: (\"-infinity\",\"a\"]
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