Two companies, Farm Fresh and Gourmet Grocers, opened their first four grocery store locations in 2010. Farm Fresh continued to open 12 new locations each year while Gourmet Grocers doubled their number of store locations each year. Use this information to answer.
The situation can be represented by the equations below, where y is the total numbe grocery store locations and x is the years since 2010. What type of function does each store represent?