Question 57 Not yet A machine has a cost of $24,000, a residual value of $6,000, and an estimated three-year life. If depreciation in the second year was $2,000, which depreciation method was used? answered Marked out of 2.00 Select one: Flag question a. a) straight-line b. b) double declining balance C. c) units of production d. d) cannot tell from information given