A function is created to represent the amount of money in your checking account. What restrictions would be made to the domain?
-The domain would include all real numbers.*
-The domain would only include positive integers.
-The domain would only include positive numbers.
-The domain would only include integers.
I am thinking that it could also be negative.
Thank you for any and all help!
Changing my mind. It is D.
Why would it be integers?
$ 51.47 for example
I suppose it could be negative if your bank has some sort of policy covering your bad checks.
However it would not include 51.473
so 100 * entry is integer
What am I thinking?
The RANGE is the amount in the account.
The DOMAIN is the date :)
To determine the domain of a function that represents the amount of money in your checking account, you need to consider the practical restrictions or limitations in this context.
In this case, certain restrictions would typically be made to the domain to reflect the reality of a checking account. Here are the possibilities you mentioned and their implications:
1. The domain would include all real numbers:
- This means that the function can take any positive, negative, or zero value, including decimal values. However, in the context of a checking account, negative values would not make sense because it represents an overdraft or debt. Therefore, this option is not suitable.
2. The domain would only include positive integers:
- This restriction implies that the function can only take positive whole numbers as inputs. While this could work for some situations, it does not capture the possibility of having a balance of zero or a negative balance.
3. The domain would only include positive numbers:
- This implies that the function can take any positive real number as an input, including decimal values. While this allows for zero balance, it does not account for the possibility of negative balances.
4. The domain would only include integers:
- This restriction means that the function can only take positive or negative whole numbers as inputs. This would be a more appropriate choice, as it allows for zero balance and negative balances, reflecting the practical limitations of a checking account.
Therefore, in the context of a checking account, the most reasonable restriction to the domain would be that it includes all integers, positive, negative, or zero.