Use the Dynamic Exhibit to answer the following questions.

1. Fill in depreciation expense in year 3 under each depreciation method when residual value is $30,000 and useful life is 3 years:

Depreciation method:
Straight-line
Units-of-Output
Double-declining

2. Fill in the book value at the end of year 1 under each depreciation method when residual value is $36,000 and useful life is 4 years:

Depreciation method:
Straight-line
Units-of-Output
Double-declining

3. Move the Useful Life slider from 3 years to 4 years and complete the sentence.

Depreciation expense each year under every method is when the cost is spread over a longer useful life.