$\"\"$

The conditions are $\"\"$ .

So the graph of the function has $\"\"$ intercepts $\"\"$ and $\"\"$ .

$\"\"$ for $\"\"$ , means $\"\"$ is decreasing for $\"\"$ .

$\"\"$ for $\"\"$ , means $\"\"$ is increasing for $\"\"$ .

$\"\"$ , means $\"\"$ has critical number at $\"\"$

$\"\"$ , means $\"\"$ is concave downwards in its interval.

Now draw the function with above all conditions.

$\"\"$

$\"\"$ .