Kai's Kites decided to advertise on billboards around town and track the relationship between the number of billboard advertisements
they posted and the number of kites they sold. This table gives the total number of billboards advertisements they bought compared
to the total number of kites they sold. The data can be modeled by a quadratic function
Billboard advertisements
1
2
3
4
5
Kite sales
6
120
229
344
463
588
717
What function best models the data?