$f(x)$ is defaed for all real numbers $f(x)$ is increasing oner the ritents $(-10)$ anl $(4,)f(x)<mn>0</mn>$ over inferrals $(-,-1)$ and $(0,4)f(x)>0$ ohes be intural $(3,)$

$f(x)$ is concare down ars the uffinals $(-,-1)$ and $(-1,3)(|)=0$ and $f^{\text{'}\text{'}}(3)=0$

$f^{\text{'}}(-1)$ is undephat