Question

A function is created to represent the amount of money in your checking account. What restrictions would be made to the range?

A. The range would include all real numbers.
B. The range would only include positive integers.
C. The range would only include positive numbers.
D. The range would only include integers.

Answer 1

The range of a certain function or a certain situation is that which includes all the reasonable numbers that may be included as answer to the given. A checking account balance can assume values that are from 0 to positive infinity, depending on the deposits and does not necessarily have to be only integers. The answer to this item therefore should be letter C.

Answer 2

A Range of a function is defined as the set of All the output values. If a function is created to represent the amount of money in your checking account then the range will represent the amount that you have in your account at the current time.

The output of this function can be positive, negative or zero. If you draw more amount that you have in your account, than you have overdrawn the your account balance will show up as negative.

If you have zero balance in your account, then the function have the value 0.

And in case of positive balance, the function will return a positive range.

So, could include all Real numbers. The answer is real numbers and not integers because the account balance can also be in decimals.

Therefore, option A gives the correct answer.