What are the asymptotes?
https://www.google.com/search?q=asymptotes&rlz=1CAJJUF_enUS919&oq=asymptoes&aqs=chrome.1.69i57j0i10l9.6537j0j7&sourceid=chrome&ie=UTF-8&safe=active&ssui=on
This is the google page on them. For this one I belive the answer is x+-3, y=1.