Increasing and Decreasing Intervals of a Function

$(-\infty,-\frac{1}{\sqrt e})\ \nearrow$

$(-\infty,-\frac{1}{\sqrt e})\ \searrow$

$(-\frac{1}{\sqrt e},0)\ \nearrow$

$(-\frac{1}{\sqrt e},0)\ \searrow$

$(0,\frac{1}{\sqrt e})\ \nearrow$

$(0,\frac{1}{\sqrt e})\ \searrow$

$(\frac{1}{\sqrt e},\infty)\ \nearrow$

$(\frac{1}{\sqrt e},\infty)\ \searrow$