SOLUTION: How do I solve this follow question: Use the function to solve for x when f(x)=1287?

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Question 389309: How do I solve this follow question: Use the function to solve for x when f(x)=1287?
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Not enough information, there are infinitely many functions that have an x value that satisfy f(x) = 1287.