Annie is a financially responsible person who keeps a detailed record of the activities in her bank account.

1. annie is considering opening a certificate of deposit (cd) account. the cd account will earn interest. however, it does not allow her to deposit or withdraw money for 2 years.

first bank is offering a cd account with a 1.8% interest rate each month. the interest is compounded. in other words, the interest earned each month will be based on the total account balance from the previous month. annie has $500 to start the account.
(a) fill in the table showing the amount of money in the cd account over 4 months. banks always round down to the nearest cent when necessary.
(b) if annie graphed the function, what would the y-intercept be? how do you know this?
(c) is the relation a function? explain why or why not.
(d) is the relation linear? if so, state the rate of change and write the equation of the relation, where x is the number of months and y is the amount in the account. if not, explain why not.