Answer:
1.

2.

3.

4.

5.

6. There are no holes for this function.
7. There are no oblique asymptotes.
Explanation:
Consider the function
The denominator of the fraction includes the expression
Since the denominator cannot be equal to 0, then

Thus, the range is

and line
is a vertical asymptote.
The roots of the function are:

When

Point (0,-1) is y-intercept.
The line
is a horizontal asymptote.
There are no holes for this function.
There are no oblique asymptotes.