John is a high school student who is taking 8 courses during the school year. In order to motive him, John’s parents came up with two awarding plans from which he can choose. Plan 1 pays John $100 for every A he gets. Plan 2 starts with $3 on the first A, and every A thereafter the amount tripled. Identify the function(s) that models the two plans and determine which one John should choose.