The table shows how much Kim earned from 1996 to through 2004. (table year= X and annual salary=y)
Year
1996
1998
2000
2002
Annual Salary
($)
42,000
47,500
48.900
55,000
60,000
2004

What is the equation of a trend line that models an approximate relationship between time and Kim's annual salary? Let 1996 = 0.

A y = 2200x + 40000; x is the current year, y is annual salary
B. y = 1996x + 42000; x is slope, y is annual salary
C. y = 2200x + 40000; x is years since 1996;y is annual salary.
D. y = 40000x + 2500; x is years since 1996;y is annual salary.