A work enter system purchased at a cost of $60,000 in 2013 has scrap value of $12,000 at the end of 4 years. If the straight-line method of depreciation is used,a) Find the rate of depreciation
b) Find the linear equation expressing the system's book value at the end of "t" years.
c) sketch the graph of the function of part (b).
d) Find the system's book value at the end of the third year.