Answer:
as it goes to negative infinity, f(x) approaches -3
as it goes to positive infinity, f(x) approaches 3
horizontal asymptotes at -3 and 3
Explanation:
by graphing you can see the limits & asymptotes. Also if you analyze the leading coefficient of the function, you can determine the behavior for very large inputs at x. Try plugging large numbers for x in a table and notice the values approach 3.