Asked by jaaaay


A manufacturer buys $280,000 worth of machinery that depreciates linearly so that its trade-in value after 10 years will be $30,000. Express the value of the machinery (V) as a function of its age (t).
Answered by Steve
The slope of the line is (30000-280000)/10 = -25000

So,

V(t) = 280,000 - 25,000t
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