Answer: The domain of the function should be whole numbers.
This functions counts the number of cars that pass through an intersection as the domain (or input). Therefore, we would start counting at 0 and go up for each car.
The set of numbers {0, 1, 2, 3, 4, 5, 6, 7 ....} are called the whole numbers.
The expression representing this would be 24 × 50 × 2. You do not need parentheses because multiplication is commutative. Simplified this would then be 100 × 24 which is $2400 .