document.write( "Question 577674: This section in my book is addition and subtraction of polynomials.. The Question is, If the cost C to produce x items is C=x exponent 2+100x+500 and the revenue R due to selling x items is R=300x find the profit P.
\n" ); document.write( "I am totally lost on the were to begin on the promblem. \n" ); document.write( "

Algebra.Com's Answer #370254 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
The profit, P, would be the Revenue, R, minus the Cost, C.
\n" ); document.write( " $\"+P+=+R+-+C+\"$
\n" ); document.write( "given:
\n" ); document.write( " $\"+C+=+x%5E2+%2B+100x+%2B+500+\"$
\n" ); document.write( " $\"+R+=+300x+\"$
\n" ); document.write( " $\"+R+-+C+=+300x+-+%28x%5E2+%2B+100x+%2B+500+%29+\"$
\n" ); document.write( "and, since $\"+P+=+R+-+C+\"$ ,
\n" ); document.write( " $\"+P+=+300x+-+x%5E2+-+100x+-+500+\"$
\n" ); document.write( " $\"+P+=+-x%5E2+%2B+200x+-+500+\"$
\n" ); document.write( "where $\"x\"$ is the number of items produced.
\n" ); document.write( "You can't really see what's going on until you
\n" ); document.write( "plot the function. Anywhere on the plot where
\n" ); document.write( " $\"P\"$ is negative means that $\"+C+\"$ exceeds $\"+R+\"$
\n" ); document.write( "and the company will soon go out of business.
\n" ); document.write( "here's the plot. $\"+P+\"$ is the vertical axis,
\n" ); document.write( " $\"+x+\"$ is on the horizontal.
\n" ); document.write( " $\"+graph%28+400%2C+400%2C+-250%2C+250%2C+-5000%2C+12000%2C++-+x%5E2+%2B+200x+-+500+%29+\"$ \n" ); document.write( "

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