In mathematics, a function is a relationship or rule that assigns each input exactly one output. In simpler terms, for every value in the domain (the set of possible inputs), there is a unique corresponding value in the range (the set of possible outputs). This means that no input can map to more than one output.
Considering the table provided:
| Day of the Week | Number of Children in the Car | |------------------|-------------------------------| | Sunday | 2 | | Monday | 4 | | Tuesday | 4 | | Wednesday | 3 | | Thursday | 4 | | Friday | 3 | | Saturday | 0 |
This table demonstrates a function because each day of the week (the input) corresponds to one specific number of children in the car (the output). No day has more than one value associated with it; for instance, if you input "Monday," the output (the number of children) is always 4. Thus, the table satisfies the definition of a function as each day uniquely determines one number of children.
To summarize, the table shows a function because each input (day of the week) has a unique output (number of children in the car).