document.write( "Question 1032512: GoQuik Dinners makes meals for people on the go. The company models their profit with the function P = -2x^2 + 14x - 20, where x is the number of meals produced in hundreds, and P is the company's profits, in thousands \r
\n" ); document.write( "\n" ); document.write( "a) How many meals must be produced for the company to break even?
\n" ); document.write( "b) How many meals does GoQuik need to produce to maximize their profit?
\n" ); document.write( "c) What is the maximum profit they could earn?\r
\n" ); document.write( "\n" ); document.write( "Thanks
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Algebra.Com's Answer #647270 by fractalier(6550)\"\" \"About 
You can put this solution on YOUR website!
a) To break even, P = 0...we get
\n" ); document.write( "\"-2x%5E2+%2B+14x+-+20+=+0\"
\n" ); document.write( "\"x%5E2+-+7x+%2B+10+=+0\"
\n" ); document.write( "\"%28x-2%29%28x-5%29+=+0\"
\n" ); document.write( "Thus they break even at 200 meals and at 500 meals.
\n" ); document.write( "b) To maximize profit, we take the derivative and set it equal to zero, so that
\n" ); document.write( "P' = -4x + 14 = 0
\n" ); document.write( "and
\n" ); document.write( "x = 3.5 = 350 meals
\n" ); document.write( "c) To find out what that profit is, we plug 3.5 in for x in the original and get
\n" ); document.write( "P(3.5) = -2(3.5)^2 + 14(3.5) - 20 = 4.5 = $4500
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