1. The problem statement, all variables and given/known data http://i3.minus.com/jbt2vueBfwXvWD.jpg [Broken] 2. Relevant equations Linearization: f(x) + f'(x)(dx) 3. The attempt at a solution The derivative of g(x) using the chain rule is (2lnx)/x. x = e, so that simplifies to 2/e. Linearization: (2/e)x + 1, where 1 is f(e). Why is the answer (2/e)x - 1 instead? I thought f(e) is 1, not negative 1?