3 Required information (The following information applies to the questions displayed below. Part 1 of 2 Phillips Company manufactures air-conditioning units for commercial buildings and has noticed considerable variation in shipping expenses from month to month as per the data below: 5 points Units Shipped 4 4 5 2 3 Month January February March April May June July Skipped Total Shipping Expense $ 2,360 $ 3,260 $ 2,800 $ 1,314 $ 2,310 $ 3,240 $ 4,704 eBook 6 8 4. What is the cost formula for shipping expenses? X