$\"\"$

(a)

The function is $\"\"$ .

Graph:

Graph the function $\"\"$ .

$\"\"$

(b)

Show that $\"\"$ .

Consider $\"\"$ .

Take logarithm of each side.

$\"\"$

$\"\"$ .

$\"\"$ , for $\"\"$ .

Hence, the graph is bounded between $\"\"$ to $\"\"$ along $\"\"$ -axis.

Hence, $\"\"$ .

$\"\"$

(a)

Graph of the function $\"\"$ is

$\"\"$

(b) $\"\"$ .