document.write( "Question 564990: Someone bought a CD player for $250 and finds 2 years later when he wants to sell it that it's worth $100. Find a formula for the value of the CD player if the value decreases. \n" ); document.write( "

Algebra.Com's Answer #365559 by stanbon(75887) $\"\"$ $\"About$

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Someone bought a CD player for $250 and finds 2 years later when he wants to sell it that it's worth $100. Find a formula for the value of the CD player if the value decreases.
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\n" ); document.write( "You have 2 points: (0,250) and (2,100)
\n" ); document.write( "slope = (100-250)/(2-0) = -150/2 = -75
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\n" ); document.write( "Form: y = mz + b
\n" ); document.write( "250 = -75*0 + b
\n" ); document.write( "b = 250
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\n" ); document.write( "Equation:
\n" ); document.write( "value = -75(years) + 250
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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