$\"\"$

The exponential functions are $\"\"$ , $\"\"$ , $\"\"$ and $\"\"$ .

Graph the functions $\"\"$ , $\"\"$ , $\"\"$ and $\"\"$ on a common screen.

$\"\"$

From the properties of the exponential functions,

If $\"\"$ , then $\"\"$ is decreasing.

If $\"\"$ , then $\"\"$ is increasing.

Observe the graph,

Therefore, the functions $\"\"$ and $\"\"$ , which are having base greater than one are monotonoically increasing.

The above curves are approaching zero as $\"\"$ and the curves are approaching infinite as $\"\"$ .

Therefore, the functions $\"\"$ and $\"\"$ are monotonoically decreasing.

The above curves are approaching zero as $\"\"$ and the curves are approaching infinite as $\"\"$ .

All the curves passing through the point $\"\"$ .

$\"\"$

Graph:

$\"\"$

The functions $\"\"$ and $\"\"$ are monotonoically increasing.

The functions $\"\"$ and $\"\"$ are monotonoically decreasing.