$\"\"$

The function is $\"\"$

Construct a table of values for $\"\"$ .

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Graph:

Graph the function $\"\"$ : \ \

$\"\"$

Observe the graph :

Domain is all real numbers.

Range is real numbers greater than or equal to $\"\"$ .

$\"\"$

Graph of the function $\"\"$ is

$\"\"$

Domain is all real numbers.

Range is real numbers greater than or equal to $\"\"$ .