$\"\"$

Find the equation corresponds to the graph.

Points located on the graph are $\"\"$ and $\"\"$ .

Consider the function is $\"\"$ .

Find the value of b at the point $\"\"$ .

Substitute $\"\"$ in $\"\"$ .

$\"\"$

The definition of logarithm is : $\"\"$ if and only if $\"\"$ .

$\"\"$

At point $\"\"$ , the value of b can not be defined.

$\"\"$

Find the value of b at the point $\"\"$ .

Substitute $\"\"$ in $\"\"$ .

$\"\"$

The definition of logarithm is : $\"\"$ if and only if $\"\"$ .

$\"\"$

Substitute $\"\"$ in $\"\"$ .

$\"\"$ .

The equation corresponds to the graph is $\"\"$ .

$\"\"$

The equation corresponds to the graph is $\"\"$ .