A company purchased factory equipment on April 1,2011 for $80,000. It is have a $10,000 salvage value at the end of its 10-year useful life. Using the straight-line method of depreciation, the amount to be recorded as depreciation expense at December 31, 2011 is \begin{tabular}{r} $8,000 \\ \hline$7,000 \\ \hline$5,250 \\ \hline$6,000 \\ \hline \end{tabular}