$\"\"$

The function $\"\"$ .

The domain of a function is all possible values of $\"\"$ .

The denominator of function $\"\"$ is always greater than or equal to one.

$\"\"$ , for different values of $\"\"$ .

The domain of $\"\"$ is all real numbers.

$\"\"$ is continuous at every value of $\"\"$ .

$\"\"$

$\"\"$ is continuous for all values of $\"\"$ .