The Method of Least Squares Was Used to Develop a Cost

Multiple Choice

The method of least squares was used to develop a cost equation to predict the cost of monthly equipment maintenance for the Regina Company. The following computer output was received:
The driver used was the number of machine hours.
$\begin{array}{lr}\text { Intercept } & 32,000 \\\text { Slope } & 25\end{array}$
-Refer to the Figure.What was the cost formula for equipment maintenance?

A) total maintenance cost = $25 × machine hours
B) total maintenance cost = $32,000
C) total maintenance cost = $32,000 + ($25 × machine hours)
D) total maintenance cost = $25 + ($32,000 × machine hours)