Sherman Corporation wants to find an equation to estimate some of their monthly operating costs for the operating budget for 2021. The following cost and other data were gathered for 2020: (Click the icon to view the cost and other data) Read the reavirements. Requirement 2. Using the high-low method, determine the cost function for each cost. Begin by selecting the general formula that represents the linear cost function for each cost. Now determine the cost function for each cost. (Enter all values in the same format as the general linear formula. If an input field is not used in the equation, leave the input field empty; do not enter a zero or select a label.) Cost function Maintenance y= Health insurance y= Shipping costs y=