ok, what you have so far is correct.
Vertical asymptote is x=7
horizontal asymptote y=0
now for the domain and range: the domain: The domain is all real numbers, x not equal to 7. This means the x values can be any number except for 7, they go to infinity on the left and right side of 7.
The range is: (negative infinity, 0 ) infinity is a sideways 8 , I don't know how to do it on this website.