The first leg of Ima's journey lies along the line passing through the origin, with slope -1...so using the point-slope formula can you determine the...
Let $g(x) = f(x) - 0.5x$. Can you use the given information (together with the intermediate value theorem and Rolle's theorem) to show that $g'(c) =...
I probably should not be answering my own question ... but I am now of the opinion that \psi is not an isomorphism ... but is an embedding of F in F...