E$5-7($Algo$)$ Estimating Cost Behavior Using High$-$Low Method $[$LO $5-3]$

Canyon Dental Services is a specialized dental practice whose only service is filling cavities. Canyon has recorded the following for the past nine months:

$\backslash$table$[[$Number of Cavities$],[$Month$,$Filled,Total Cost$],[$January$,350,$$$5,050$