im having trouble with this word problem. im not sure if i am setting up the values wrong but i keep getting the wrong answer... can anyone help me??...

im having trouble with this word problem. im not sure if i am setting up the values wrong but i keep getting the wrong answer... can anyone help me??

In 2000 Americans ate meals out an average of 143 times a year at restaurants, by the year 2014, this had reached 240 per year.

a) Write the equation for this linear function making x=0 for the year 2000. The y-intercept when x=2000 (or zero) is 143.

b) According to this model how many meals did Americans eat in restaurants in 2009?