To write the equation for the bank account balance, we need to consider the initial deposit and the monthly deposits.
The bank recommends:
- An initial deposit of $100
- A monthly deposit of $15
The equation for the bank account balance, \( y \), after \( x \) months can be expressed as:
\[ y = 15x + 100 \]
So, the equation for the bank account balance is:
\[ y = 15x + 100 \]