$\"\"$

The function is $\"\"$ .

(a)

Graph the function $\"\"$ over the interval $\"\"$ .

Graph:

$\"\"$

(b)

Observe the graph.

The function appears to be a constant function.

Therefore, graphically $\"\"$ .

$\"\"$

(c)

Consider $\"\"$ and $\"\"$ .

If $\"\"$ then $\"\"$ .

$\"\"$

If $\"\"$ then $\"\"$ .

$\"\"$

Consider $\"\"$ .

$\"\"$

$\"\"$ .

Substitute $\"\"$ and $\"\"$ .

$\"\"$ .

$\"\"$

(a) Graph:

$\"\"$

(b) The graph is horizontal line at $\"\"$ .

(c) $\"\"$ .