Craig Lamb

Mathematics

1 February, 11:58

Suppose you receive $100 for a graduation present, and you deposit it in a savings account. Then cach

week thereafter, you add $5 to the account but no interest is earned. The amount in the account is a

function of the number of weeks that have passed.

a

IFF (x) represents the amount of money you have left in your savings account after x weeks,

write a function to model the situation.

F (x) =

b. Suppose you get a job at a Doggy Daycare. Now, you can add $10 a week to your savings

account. Write a new function to model this if you start adding $10 a week after you already

have $130 in your account

F (x) =