Question

Dani had $200 in her savings account. When she turned 18, the bank began charging her a $5.00/month fee. Write a function in terms of a for the balance of her savings account if she doesn't notice the monthly fee.

Complete the following. Use standard slope-intercept form.

Answer 1

We can write a function in terms of 'a' for the balance of Dani's savings account if she doesn't notice the monthly fee as:

f(a) = 200 - 5a

where 'a' represents the number of months that have passed since Dani turned 18 and the bank began charging her the monthly fee.

So, f(0) = 200 represents the initial balance in Dani's savings account when she turned 18.

f(1) = 200 - 5(1) = 195 represents the balance in Dani's savings account after 1 month.

f(2) = 200 - 5(2) = 190 represents the balance in Dani's savings account after 2 months and so on.

Therefore, the function f(a) = 200 - 5a represents the balance of Dani's savings account after 'a' number of months if she doesn't notice the monthly fee.

Let me know if this helps! :)