document.write( "Question 357804: In a local arena, there are 1000 premium seats, costing $50 each. Due to an increase in operating expenses, the arena must increase the price of a seat. They know that for every $3.75 increase in price, they will lose 4 patrons. Find the new price they should charge to make the most money and lose the fewest patrons. \n" ); document.write( "
Algebra.Com's Answer #255401 by robertb(5830)\"\" \"About 
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Let x = # of unit increase in the price.
\n" ); document.write( "Then the revenue function is \"R%28x%29+=+%2850+%2B+3.75x%29%281000-4x%29\".
\n" ); document.write( "the vertex happens at x = 355/3, or 118.333...
\n" ); document.write( "Since positive integral values are acceptable only, either x = 118 or x = 119. Direct substitution into the revenue function, and comparison of the resulting values results in x = 118 giving the higher revenue.
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