1. The problem statement, all variables and given/known data d/dx[f(2x)]=f'(x) and f'(1)=1 find f'(2) 2. Relevant equations 3. The attempt at a solution so I think this means the derivative of "f(2x)" equals f'(x) if I find the derivative using the chain rule I would get f'(2x)2= f'(x) so f'(2x) = f'(x)/2 Here I am at a loss as to how to use the information about f'(1)=1 to find f'(2). Do I just substitute 1 for f'(x) and then 1 for x in the f'(2x)? That would make the answer 1/2. As you would have f'(2)=1/2 Is that correct? Am I trying to make this problem harder than it is? Is the value of f'(2) the only value I could determine from this data? i.e. I could not determine the value of f'(3).