Question

Tommy has $350 of his graduation gift money saved at home, and the amount is modeled by the function h(x) = 350. He reads about a bank that has savings accounts that accrue interest according to the function s(x) = (1.04)x−1. Explain how Tommy can combine the two functions to model the total amount of money he will have in his bank account as interest accrues after he deposits his $350. Justify your reasoning.

Answer 1

So the functions that are given are the following:

`h(x)=350\\s(x)=(1.04)^(x-1)`

So in order to find the money in his account, there would have to be a substitution for (x=$350) in the first function, and a place in the second function.