Explain the justification for accelerated methods of depreciation.

 2. Compute depreciation expense using the double-declining balance method. 

3. Realize that the overall impact on net income is not affected by a particular cost allocation pattern.

 4. Describe the units-of-production method, including its advantages and disadvantages. 

5. Compute depletion expense for a wasting asset such as an oil well or a forest of trees. 

6. Explain the reason that depletion amounts are not directly recorded as an expense.