Question

A function is created to represent the cost per person to attend the school dance. What restrictions would be made to the domain?

The domain would only include integers.

The domain would only include positive numbers.

The domain would only include positive integers.

The domain would include all real numbers.

Answer 1

Let's call our function that represents cost f(x)=price per person.
What can we put in for x? It's a number of people that attend the dance, right?

Then what allowable values (the domain) could we put in there?

Answer 2

We can't have negative people, or partial people right?

Answer 3

Like -3 people doesn't make sense, neither does 2.4 people