document.write( "Question 635228: A chain store manager has been told by the main office that daily profit, P, is related to the number of clerks working that day, x, according to the equation P = -25x^2 + 450x. What number of clerks will maximize the profit? \n" ); document.write( "

Algebra.Com's Answer #400171 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "y = ax^2 + bx + c   ⇒ y = a(x -(-b/2a)^2) - a(-b/2a)^2 + c
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document.write( "P = -25x^2 + 450x.    |  Note: -450/(2*-25) = 9
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document.write( "P= -25(x-9)^2 + 2025
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document.write( "  9 cleks will maximize the daily profit at $2025 \n" );
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