The following graph depicts three depreciation expense patterns over time. Required: Pattern I, of course, is straight-line

Question:

The following graph depicts three depreciation expense patterns over time.

Time Depreciation experse ($)

Required:

Pattern I, of course, is straight-line depreciation. Which depreciation expense pattern corresponds to the sum-of-the-years’ digits method and which corresponds to the double-declining balance method? Explain why the shapes of the Pattern II and Pattern III lines differ.