Increasing and Decreasing Intervals of a Function

$(-\infty,-\frac{\sqrt{10}}{2})\ \nearrow$

$(-\infty,-\frac{\sqrt{10}}{2})\ \searrow$

$(-\frac{\sqrt{10}}{2},\frac{\sqrt{10}}{2})\ \nearrow$

$(-\frac{\sqrt{10}}{2},\frac{\sqrt{10}}{2})\ \searrow$

$(\frac{\sqrt{10}}{2},3)\ \nearrow$

$(\frac{\sqrt{10}}{2},3)\ \searrow$

$(3,\infty)\ \nearrow$

$(3,\infty)\ \searrow$