$2$ months are:

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Requirements

Estimate the cast function for delivery.

Can the constant in the cost function be used as an estimate of fixed delivery cost per month? Explain.

Requirement $1$ Estimate the cost function for delivery.

Requirement $2.$ Can the constant in the cost function be used as an estimate of fixed delivery cost per month? Explain.

The cost function in requirement $1$ is an estimate of how costs behave

the relevant range, not at cost levels

the relevant range. If there are no months with zero

miles driven represented in the delivery cost account in the general ledger, data in that account.

be used to estimate the fixed costs at the zero miles driven level. The

constant component of the cost function provides the best avalable starting point for a straight line that approximates how a cost behaves

Data table