Final answer:
The domain of a function is the set of all possible input values (typically represented by 'x') that will make the function valid. It could be all real numbers, x > 0, or specific numerical ranges such as -5 ≤ x ≤ 5, or 0 ≤ x ≤ 5.
Step-by-step explanation:
Without seeing the actual graph, it's difficult to confidently provide the domain of the function. However, the domain of a function refers to all possible input values (commonly labeled as 'x') that will make the function valid. For example, if the function is defined and existent for all real numbers, then the domain would be 'all real numbers'. If the function only exists when 'x' is greater than zero, the domain would be 'x > 0'. Similarly, for a function that only exists between -5 and 5, its domain is '-5 ≤ x ≤ 5'. Same principle applies if a function is only valid when 'x' falls between 0 and 5, then the domain is '0 ≤ x ≤ 5'.
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