document.write( "Question 335529: What is the domain of this function?
\n" ); document.write( "g(x) = √(x(x-8)
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Algebra.Com's Answer #240498 by Fombitz(32388)\"\" \"About 
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The square root function requires non-negative arguments.
\n" ); document.write( "\"x%28x-8%29%3E=0\"
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\n" ); document.write( "Break up the number line into 3 regions.
\n" ); document.write( "Region 1:(\"-infinity\",\"0\")
\n" ); document.write( "Region 2:(\"0\",\"8\")
\n" ); document.write( "Region 3:(\"8\",\"infinity\")
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\n" ); document.write( "Choose a point in each region, not an endpoint, and calculate the product.
\n" ); document.write( "If the value is not negative, that region is part of the domain.
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\n" ); document.write( "Region 1: \"x=-1\"
\n" ); document.write( "\"%28-1%29%28-1-8%29%3E=0\"
\n" ); document.write( "\"-1%28-9%29%3E=0\"
\n" ); document.write( "\"9%3E=0\"
\n" ); document.write( "True, this region is part of the domain.
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\n" ); document.write( "Region 2: \"x=1\"
\n" ); document.write( "\"%281%29%281-8%29%3E=0\"
\n" ); document.write( "\"-7%3E=0\"}
\n" ); document.write( "False, this region is not part of the domain.
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\n" ); document.write( "Region 3:\"x=9\"
\n" ); document.write( "\"%289%29%289-8%29%3E=0\"
\n" ); document.write( "\"9%3E=0\"
\n" ); document.write( "True, this region is part of the domain.
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\n" ); document.write( "The domain is then (\"-infinity\",\"0\") U (\"8\",\"infinity\")
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\n" ); document.write( "\"graph%28300%2C300%2C-5%2C15%2C-10%2C10%2Csqrt%28x%2A%28x-8%29%29%29\"
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