Are these utility functions risk-averse on some given interval [a,b] ? a. f(x)=ln(x),g(x)=e^x, h(x)=−x^2
b. f(x)=−ln(x),g(x)=−e^−x, h(x)=−4x^2−10x
c. f(x)=ln(x), g(x)=−1/(e^2x), h(x)=−x^2 + 2000x
d. f(x)=ln(x),g(x)=1/(e^2x), h(x)=−x^2+10,000x
e. f(x)=ln(−2x), g(x)=−1e^2x, h(x)=x^2−100,000x
f. f(x)=ln(−2x),g(x)=−1e^2x, h(x)=x^2−100,000x