1.
\mathrm{Decreasing}:-\infty <x<\frac{1}{8},\mathrm{Increasing}:\frac{1}{8}<x<\infty
2.
\mathrm{Increasing}:-\infty <x<-\frac{1}{3},\mathrm{Decreasing}:-\frac{1}{3}<x<1,\mathrm{Increasing}:1<x<\infty
3.
\mathrm{Increasing}:-\infty <x<0,\mathrm{Decreasing}:0<x<\infty
4.
\mathrm{Decreasing}:-\infty <x<18,\mathrm{Increasing}:18<x<\infty
5.
\mathrm{Decreasing}:-\infty <x<0,\mathrm{Increasing}:0<x<\infty
6.
\mathrm{Increasing}:-\infty <x<-1,\mathrm{Decreasing}:-1<x<1,\mathrm{Increasing}:1<x<\infty
7.
\mathrm{Increasing}:-\infty <x<0,\mathrm{Increasing}:0<x<\infty
8.
\mathrm{Increasing}:4<x<\infty
9.
\mathrm{Decreasing}:-\infty <x<0,\mathrm{Increasing}:0<x<\infty
10.
\mathrm{Increasing}:0<x<\infty
