Final answer:
Without the specific function f(x), it is impossible to accurately determine the input values at which f(x) = 3. Based on the information available, the answer would be 'G. None of the above' as we cannot identify the correct values for x.
option d is the correct
Step-by-step explanation:
To determine the input values for which f(x) = 3, we would need to have the specific definition of the function f(x). Without an explicit formula or description of f(x), it is impossible to accurately identify which of the given options would result in f(x) equalling 3.
Based on the provided information from the practice tests, none of the examples provided seem to directly answer the question at hand. As no information was given in the references to ascertain the values where f(x) equals 3, we cannot select any of the answer choices provided (A through F) confidently.
Therefore, the correct choice with the information provided would have to be G. None of the above, as we cannot establish the relationship between x and f(x) without further information on the function.