Oliwia is opening a bank account. She learns that there is a special promotion where if she deposits $3,000 and then makes no additional deposits or withdrawals, her account will earn $3 in interest per month. Write the equation of a linear function that models the relationship between number of months and total amount of money Oliwia will have in her account.(1 point)

Responses

y=3x+3,000
, where x
is the number of months and y
is the total amount of money Oliwia will have in her account.
y equals 3 x plus 3,000 , where x is the number of months and y is the total amount of money Oliwia will have in her account.

y=1,000x+3
, where x
is the number of months and y
is the total amount of money Oliwia will have in her account.
y equals 1,000 x plus 3 , where x is the number of months and y is the total amount of money Oliwia will have in her account.

y=3,000x+3
, where x
is the number of months and y
is the total amount of money Oliwia will have in her account.
y equals 3,000 x plus 3 , where x is the number of months and y is the total amount of money Oliwia will have in her account.

y=3x+1,000
, where x
is the number of months and y
is the total amount of money Oliwia will have in her account.

1 answer

To model the total amount of money Oliwia will have in her account over time, we need to consider both the initial deposit and the interest earned monthly.

  1. Initial Deposit: $3,000
  2. Interest Earned Per Month: $3 per month

The function will start at her initial deposit of $3,000 and increase by $3 for each month that passes.

Let \( x \) represent the number of months, and \( y \) represent the total amount in the account after \( x \) months.

The equation can be written as:

\[ y = 3x + 3000 \]

Where:

  • \( 3x \) represents the total interest earned after \( x \) months.
  • \( 3000 \) is the initial deposit.

Thus, the correct equation is:

y = 3x + 3,000, where x is the number of months and y is the total amount of money Oliwia will have in her account.