Question

At the start of the year, the balance in a married couple’s account is $ 1 , 750 . They decide to each deposit $ 35 into the account each month. Which function represents the amount in the account n months after the beginning of the year? f ( n ) = 1 , 750 + 35 n f of n is equal to 1 comma 750 plus 35 n f ( n ) = 1 , 750 + 70 n f of n is equal to 1 comma 750 plus 70 n f ( n ) = 1 , 750 n + 35 f of n is equal to 1 comma 750 n plus 35 f ( n ) = 1 , 750 n + 70 f of n is equal to 1 comma 750 n plus 70

Answer 1

Answer:

f(n) = 1750 + 70n

Step-by-step explanation:

Since, each of them are depositing 35$ each month, they are adding 35x2 = 70$ each month.

So, in n months, they will be adding 70n $ to their account.

Initially, they had 1,750$ in their account. After n months, they should have 1750+70n $ in their account.

So, the function that represents this is, f(n) = 1750 +70n