How Would You Determine f(8) if f(4) Equals 2f(2)?

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Determining f(8) based solely on the information that f(4) equals 2f(2) is not possible without additional details about the function f. Functions can take various forms, and the relationship provided does not specify a unique function. Without an explicit equation or more context, the value of f(8) remains indeterminate. The discussion emphasizes the necessity of more information to make any conclusions about f(8). Thus, additional data is essential for accurate function evaluation.
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This is not a specific question, but if an equation was given and you were told that f(4)= 2f(2), how would you find f(8)?
 
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It is not possible to know what f(8) is from this this information alone. Functions come in many forms.
 
Numnum said:
This is not a specific question, but if an equation was given and you were told that f(4)= 2f(2), how would you find f(8)?

You wouldn't without more information.
 
Numnum said:
This is not a specific question, but if an equation was given and you were told that f(4)= 2f(2), how would you find f(8)?
"If an equation was given..."
Is this equation the formula for the function f?
 

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