02 Question (1 point) B See page 58 3rd attempt A Let u = f(x1, x2) be a utility function, and let f(u) be a transformation of the utility function. Which of the following transformations are positive monotonic transformations of u? Choose one or more: N) = g ' f(u) = u 200 f(u) = 3n f(u) = u2 ' f(u) = 100 u 7 f(u) = u3 ' f(u)=% f(u)=u+1