document.write( "Question 1176774: A school has just purchased new computer equipment for The graph shows the depreciation of the equipment over 5 years. The point (0, 20,000) represents the purchase price and the point (5, 0) represents when the equipment will be replaced. Write a linear equation in slope-intercept form that models the value of the equipment, y, x years after purchase. Use the model to predict the value of the equipment after 3 years?
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Algebra.Com's Answer #804258 by ikleyn(52777)\"\" \"About 
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document.write( "From the post, the depreciation rate is  \"20000%2F5\" = 4000 monetary units per year.\r\n" );
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document.write( "THEREFORE, the depreciation function is\r\n" );
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document.write( "    y = 20000 - 4000*x,\r\n" );
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document.write( "where x is the time in years after the starting moment.\r\n" );
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document.write( "In 3 years,  y = 20000 - 4000*3 = 8000.\r\n" );
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