Concept:The straight-line method spreads depreciation evenly over an asset's useful life.Explanation:Cost of the machine = #35,000Present scrap value = #15,000Useful life = 5 yearsDepreciable amount = Cost − Scrap value = #35,000−#15,000=#20,000Yearly depreciation = Depreciable amount ÷ Useful life = #20,000÷5=#4,000The scrap value of #9,000 is the old estimate and is not used when the present scrap value is given.Answer:A. #4,000