The table shows the cost of buying x tickets to a school play.
Buying Tickets
\table[[Number of Tickets, x],[2,5],[10,13],[Cost, y],[$8.50,$21.25],[$42.50,$55.25]]
If the data are graphed on a coordinate grid, what is the y-intercept of the line that passes through these data points?
(A) 2.55
(B) 8.50
(c) 4.25
(D) 0