Determine whether each relationship is a function. state the domain and range of each relation.

The answer is:

The relation is a function

Domain: {-2,0,1}

Range:  {1,3}

It's a function since each input (domain) has only one value at the output (range). A function exists when there is exactly one single value for each input, if there is more than one output for each input, the relation is not a function.

Have a nice day!

the number of the people going.

step-by-step explanation:

the cost to buy one movie ticket is $7. if the total cost for the movie is a function of how many people go, then the input is : the number of the people going.