Linda was attempting to estimate a model for her small business's overhead costs. She is $99\mathrm{.}9\%$ sure that overhead costs are driven primarily by production, but she also knows that this cost isn't entirely variable. So she grabbed the last $8$ months of production and overhead cost data, listed it out, and plotted it as follows.

$\backslash$table$[[$Month$,$# of Units Produced,Overhead Cost$],[1,280,$$$3,460$