Question

Timothy purchased a computer for $1000. The value of the computer depreciates by 20% every year.

Answer 1

This situation represents exponential decay. The rate of growth or decay, r, is equal to 0.2. So the value of the computer each year is 80% of the value in the previous year. It will take 3 years for the value of the computer to reach $512.

Explanation:

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