document.write( "Question 383959: Hello! I am needing help on a word problem. \r
\n" ); document.write( "\n" ); document.write( "Macro Manufacturing estimates that its profit P in hundreds of dollars is P= -2x^2 + 20x-2 where x is the number of units produced in thousands. How many units must be produced to obtain maximum profit? \r
\n" ); document.write( "\n" ); document.write( "Thanks so much! \r
\n" ); document.write( "\n" ); document.write( "Denise
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Algebra.Com's Answer #271896 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
To find the max or min for a quadratic equation, convert to vertex form (\"y=a%28x-h%29%5E2%2Bk\") by completing the square.
\n" ); document.write( "\"P=+-2x%5E2+%2B+20x-2\"
\n" ); document.write( "\"P=-2%28x%5E2-10x%29-2\"
\n" ); document.write( "\"P=-2%28x%5E2-10x%2B25%29-2%2B2%2825%29\"
\n" ); document.write( "\"P=-2%28x-5%29%5E2-2%2B50\"
\n" ); document.write( "\"P=-2%28x-5%29%5E2%2B48\"
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\n" ); document.write( "The vertex is (\"5\",\"48\"), with a maximum profit of \"48\" hundred dollars which occurs when \"x=5\" thousand units are produced.
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