Question

The profit earned by a sporting goods outlet is modeled in the graph below, where x is the number of years since the outlet opened. He recorded the profit for the first 10 years since the outlet opened. what is the domain

Answer 1

The domain would be x ≥ 0.

This is because the outlet cannot have profit before it was open. Therefore, the growth must be from year 0 to present. If they give a year as starting, you can have an upper limit too, but there is not enough information here to determine that information.

Answer 2

The domain is the number of years, {0≤x≤10}.

Explanation:

The domain of a relationship is the set of x-values.

In this case, we know that x represents the number of years since the outlet opened. This means the domain is the number of years.

We also know that he recorded the first 10 years; this means that the domain is from 0 to 10, or 0≤x≤10.