Practice problem
The function f(x)=ln(ax)f(x)=\ln(ax)f(x)=ln(ax) is concave for what values of aaa?
All real values of aaa where a≠0a\neq0a=0.
No values of aaa.
All real values of a>0a>0a>0.
All real values of a<0a<0a<0.
Type a concept, like “slope” or “photosynthesis”.
