document.write( "Question 989542: QUESTION: Apple sells 1200 of their iPods at price of 200. They know that for every $5.00 decrease in price , 75 more iPods will sell but they will not drop the price below 115.00. write the number of iPods n as a function of the price p. \n" ); document.write( "

Algebra.Com's Answer #609842 by josmiceli(19441) $\"\"$ $\"About$

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$\"+n+=+1200+%2B+%28%28+200+-+p+%29%2F+5+%29%2A75+\"$
\n" ); document.write( " $\"+n+=+1200+%2B+15%2A%28+200+-+p+%29+\"$
\n" ); document.write( " $\"+n+=+1200+%2B+3000+-+15p+\"$
\n" ); document.write( " $\"+n+=+4200+-+15p+\"$ answer
\n" ); document.write( "----------------------------------
\n" ); document.write( " $\"+p+=+115+\"$ is the lowest price that can be charged
\n" ); document.write( " $\"+n+=+1200+%2B+%28%28+200+-+115+%29+%2F+5+%29%2A75+\"$
\n" ); document.write( " $\"+n+=+1200+%2B+%28+85%2F5+%29%2A75+\"$
\n" ); document.write( " $\"+n+=+1200+%2B+85%2A15+\"$
\n" ); document.write( " $\"+n+=+1200+%2B+1275+\"$
\n" ); document.write( " $\"+n+=+2475+\"$ is the most ipods that can be sold
\n" ); document.write( "by dropping the price
\n" ); document.write( "-----------------------
\n" ); document.write( "Here's the plot of $\"+n+=+f%28p%29+\"$
\n" ); document.write( " $\"+graph%28+400%2C+400%2C+-40%2C+350%2C+-450%2C+4500%2C+-15x+%2B+4200%2C+2475+%29+\"$
\n" ); document.write( "Note that the horizontal line is at ( p,n ) = ( 115, 2475 )
\n" ); document.write( "showing the lowest possible price and most ipods that can be sold\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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