document.write( "Question 1187662: Determine the interval(s) on which f(x)=8(x−2)^2+9 is increasing and decreasing \n" ); document.write( "
Algebra.Com's Answer #818676 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "\"f%28x%29=8%28x-2%29%5E2%2B9\"-> it's a parabola opening upward, vertex is at (\"2\",\"9\")-> \"x=2\" axis of symmetry\r
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\n" ); document.write( "\n" ); document.write( " the interval(s) on which is increasing: \r
\n" ); document.write( "\n" ); document.write( "\"2%3Cx%3Cinfinity+\"\r
\n" ); document.write( "\n" ); document.write( "(\"2\",\"infinity\")\r
\n" ); document.write( "\n" ); document.write( "and decreasing: \r
\n" ); document.write( "\n" ); document.write( "\"-infinity+%3Cx%3C2\"\r
\n" ); document.write( "\n" ); document.write( "(\"-infinity\", \"2\")
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