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.
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Given:
The profit earned by a sporting goods outlet is modelled in the graph below, where x is the number of years since the outlet opening. He recorded the profit for the first 10 years since the outlet opening.
To find:
What is the domain
Solution:
The domain of a function is the set of x-values.
From the given, we have, x represents the number of years since the outlet opening.
This implies that the domain represents the number of years.
As he recorded the first 10 years this means that the domain is from 0 to 10, or 0 ≤ x ≤ 10 (including 0 and 10).
The domain is {0 ≤ x ≤ 10}.
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