How do you find values of k for which there are no critical points if #h(x)=e^(-x)+kx# where k is any constant?
1 Answer
Mar 10, 2015
First of all, a critical point of a function
in fact, applying the chain rule, the derivative of
The question is: for which values of
easy manipulations bring us to the equivalent request
Since
So, the final answer is: if