Neil has been running a tutoring business since 2005. he charges a monthly fee for weekly tutoring sessions and a phone line. each year, he has increased his fee by the same amount. the table shows what neil charged each customer for two given years of his business:

year annual fee
1200
2005
2008 1350

a. what is the rate of change and initial value for neil’s business? how do you know?
b. write an equation in slope-intercept form to represent the fees that neil charges each year.