At $x=2$ Which Utility Function Has the Steepest Slope?
A) $u(x)=\ln (x)$

Multiple Choice

At $x=2$ which utility function has the steepest slope?

A) $u(x) =\ln (x)$
B) $u(x) =\sqrt{x}$
C) $u(x) =.05 \mathrm{x}$
D) $u(x) =\frac{x^{4}}{.4}$