$\"\"$

The function is $\"\"$ .

The denominator of f is zero when $\"\"$ .

So, the domain of f is all real numbers except $\"\"$ . $\"\"$

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

$\"\"$

The function is $\"\"$ .

To find the y - intercept then x = 0.

$\"\"$ (Write the original function)

$\"\"$ (Substitute x = 0)

The y - intercept is $\"\"$ . $\"\"$

The y - intercept is $\"\"$ .