Step 1:

General form of exponential functions $\"\"$

When $\"\"$ , $\"\"$ increasing.

$\"\"$ , $\"\"$ decreasing.

$\"\"$

The function $\"\"$ is increasing.

$\"\"$

The function $\"\"$ is increasing.

$\"\"$

The function $\"\"$ is decreasing.

$\"\"$

The function $\"\"$ is increasing.

Step 2:

To graph the functions find the coordinate pairs.

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Graph:

$\"\"$

Observe the all graphs are passes through $\"\"$ .

The base of the exponential function $\"\"$ gets larger, the exponential function grows more rapidly(for $\"\"$ ).

Solution:

The base of the exponential function $\"\"$ gets larger, the exponential function grows more rapidly(for $\"\"$ ).