You start with $240 in your account. You spend $30 each week.
If m is the money you have left in your account after w weeks, which is the independent variable (domain) and which is the dependent variable (range)? How can you determine this?
The independent variable, or the domain, is the number of weeks, denoted as "w." This is because the number of weeks is the input value that determines the amount of money remaining in the account.
The dependent variable, or the range, is the money you have left in your account, denoted as "m." The amount of money remaining in the account depends on the number of weeks (independent variable) that have passed and can change based on this input.