1. Analyze a mixed cost using the high-low method, D17 A B C 15 Shipping Cost has been determined to be mixed with the following costs for the past two years: \begin{tabular}{l|l|} 17 & Year 1 \end{tabular} \begin{tabular}{l|l|} \hline 18 & Quarter 1 \\ 19 & Quarter2 \\ \hline 20 & Quarter 3 \\ 21 & Quarter 4 \\ \hline 22 & Year2 \end{tabular} \begin{tabular}{|l|l} 22 & Year 2 \\ 23 & Quarter 1 \\ 24 & Quarter2 \\ 25 & Quarter 3 \\ 26 & Quarter 4 \\ 27 & \\ 28 & Use the data to answer the following. \\ \hline 29 & \end{tabular} 1. Using the high-low method, determine a cost formula for shipping expenses