document.write( "Question 882959: Find the minimum y-value on the graph of y-f(x). Then state where the graph of f is increasing and where it is decreasing.
\n" ); document.write( "f(x)=x^2+6x-1 \n" ); document.write( "

Algebra.Com's Answer #533206 by Fombitz(32388) $\"\"$ $\"About$

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Convert to vertex form by completing the square.
\n" ); document.write( " $\"f%28x%29=x%5E2%2B6x-1\"$
\n" ); document.write( " $\"f%28x%29=x%5E2%2B6x%2B9-1-9\"$
\n" ); document.write( " $\"f%28x%29=%28x%2B3%29%5E2-10\"$
\n" ); document.write( "The minimum value occurs at the vertex ( $\"-3\"$ , $\"-10\"$ ).
\n" ); document.write( "For $\"x%3C-3\"$ , $\"f%28x%29\"$ is decreasing.
\n" ); document.write( "For $\"x%3E-3\"$ , $\"f%28x%29\"$ is increasing.
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