Increasing Decreasing Function

$$\left(-\infty,\infty\right)$$  

$$\left(-\infty,-1\right)$$  

$$\left(1,\infty\right)$$  

$$\left(-1,1\right)$$  

$$\left(-\infty,\infty\right)$$  

$$\left(-\infty,-1\right)$$  

$$\left(1,\infty\right)$$  

$$\left(-1,1\right)$$  

$$\left(-\infty,0\right)$$  

$$\left(0,2\right)$$  

$$\left(2,\infty\right)$$  

$$\left(-\infty,0\right)$$  

$$\left(0,2\right)$$  

$$\left(2,\infty\right)$$  

$$\left(-\infty,0\right)$$  

$$\left(0,2\right)$$  

$$\left(2,\infty\right)$$  

It always increases on it's domain,

because the function's always increasing.

it increases

on:

$$\left(-\infty,-1\right)\ and\ \left(1,\infty\right)$$  

You cannot determine from the graph and function

Positive and Increasing

Positive and Decreasing

Negative and Increasing

Negative and Decreasing

Positive and Increasing

Positive and Decreasing

Negative and Increasing

Negative and Decreasing