1.
Decreasing:−∞<x<18 ,Increasing:18 <x<∞
2.
Increasing:−∞<x<−13 ,Decreasing:−13 <x<1,Increasing:1<x<∞
3.
Increasing:−∞<x<0,Decreasing:0<x<∞
4.
Decreasing:−∞<x<18,Increasing:18<x<∞
5.
Decreasing:−∞<x<0,Increasing:0<x<∞
6.
Increasing:−∞<x<−1,Decreasing:−1<x<1,Increasing:1<x<∞
7.
Increasing:−∞<x<0,Increasing:0<x<∞
8.
Increasing:4<x<∞
9.
Decreasing:−∞<x<0,Increasing:0<x<∞
10.
Increasing:0<x<∞