document.write( "Question 1160323: A clothing business finds there is a linear relationship between the number of shirts,n,it can sell and the price,p, it can charge per shirt. In particular, historical data shows that 2000 shirts can be sold at a price of $69, while 10000 shirts can be sold at a price of $13. Give a linear equation in the form p=mn+b that gives the price p they can charge for n shirts. \n" ); document.write( "
Algebra.Com's Answer #783653 by ikleyn(52798)\"\" \"About 
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document.write( "The slope coefficient is\r\n" );
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document.write( "    m = \"%2813-69%29%2F%2810000-2000%29\" = -0.007.\r\n" );
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document.write( "Therefore, the linear function for the price is\r\n" );
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document.write( "    p = m*(n-2000) + 69 = -0.007*(n-2000) + 69 = (69+0.007*2000) - 0.007*n = 83 - 0.007n.\r\n" );
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document.write( "    m = -0.007,  b = 83.\r\n" );
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