Ejercicio Exercise 2 · Microeconomía II UPF 2015

Exercise 2 (5 points). Monotonic transformation of Oliver's utility

Oliver's preferences over two goods are described by the utility function:

$$u = x_1^{1/3} x_2^{2/3} - 10$$

Which of the following functions represents a valid monotonic transformation representing Oliver's preferences? (Keep in mind that $u$ can take negative, zero, or positive values).