Recent content by djalap

So they are both positive. Because e^-u is always positive. Right?

With U in the function, can't U be negative, making the answer negative?

so d/du (log u) = 1/(u LN 10) = no? d/du (-e^-u) = e^-u = no

New answers = Yes No Yes Yes IDK? (NO?) No Yes

Homework Statement Suppose that the utility functions u(x,y) are related to v(x,y) = f(u(x,y)). In each case below, select "Yes" if the function f is an increasing, monotonic transformation and "No" if it is not. Homework Equations A differentiable equation f(u) is an increasing...