Toronto Company Makes Cell Phones $\begin{array}{ll}\text { Intercept } & 2,225 \\\text { X Variable 1 } & 9.75\end{array}$

Toronto Company makes cell phones. The company controller wanted to calculate the fixed and variable costs associated with electricity use in the factory. Data for the past four months were collected.Coefficients shown by a regression program are:
$\begin{array}{lrr}& \text { Electricity } & \text { Machine } \\\text { Month } & \text { cost } & \text { hours }\\\text { May } & \$ 7,560 & 570 \\\text { June } & 8,220 & 625 \\\text { July } & 7,480 & 546 \\\text { August } & 7,186 & 518\end{array}$ $\begin{array}{ll}\text { Intercept } & 2,225 \\\text { X Variable 1 } & 9.75\end{array}$
-Refer to the Figure.What is the cost formula for electricity cost when using the results of regression?

A) $9.75 × machine hours
B) $2,225 × machine hours
C) $2,225 + ($9.75 × machine hours)
D) $9.75+($2,225 × machine hours)