SOLUTION: Randolf bought a high-end computer system for $4800. The system depreciates at the rate of 25% each year. a) was completed (thank you Stan!!) but I am having trouble with b now:)

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: Randolf bought a high-end computer system for $4800. The system depreciates at the rate of 25% each year. a) was completed (thank you Stan!!) but I am having trouble with b now:)      Log On


   

Question 133246: Randolf bought a high-end computer system for $4800. The system depreciates at the rate of 25% each year.
a) was completed (thank you Stan!!) but I am having trouble with b now:)
b) Graph the function you derived in part (a)



Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Plot the points (0,50) and (2,80)
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EQUATION:
count = 50(sqrt(8/5))^x
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Let x = 1, count = 50*sqrt(8/5) = 63.24555...
Let x = 3, count = 50*(sqrt(8/5))^3 = 101.1928851
Plot those points and draw a smooth curve thru them.
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graph%28400%2C300%2C-5%2C4%2C-5%2C200%2C50%288%2F5%29%5E%28x%2F2%29%29
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Cheers,
Stan H.