Annie Mikhail, market analyst for a national company specializing in historic city tours, is analyzing the relationship between the sales revenue from historic city tours and the size of the city. She gathers data from six cities in which the tours are offered. Annie's dependent variable is annual sales revenues and her independent variable is the city population. Regression analysis of the data yielded the following tables: 
Annie's regression model can be written as: ___.
Definitions:
American History
The study and examination of the events, people, cultures, and interactions that have shaped the United States from its beginnings to the present day.
Since 1869
Refers to the period following the year 1869, marking events or developments in history since that year.
Federal Court Judge
An appointed official who serves in a federal court, deciding cases that involve federal laws, disputes between states, or constitutional issues.
American Bar Association
A national organization of lawyers and legal professionals in the United States aimed at improving the legal profession and the administration of justice.
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