Least squares regression

UpTop Mining has compiled the following data to analyze utility costs:

MonthMachine HoursUtility CostJanuary$200$$$300$February$325440$March$400480$April$410490$May$525620$June$680790$July$820840$August$900900$

Using regression tools in Excel, develop a formula for budgeting utility cost.

Note: Enter the answers in dollars and cents, rounded to the nearest penny.

Cost formula: Y $=$ $Answer $1$

$+$ $Answer $2$X

Where X $=$Answer $3$Machine hoursUtility cost