Summarize the pertinent information obtained by applying the graphing strategy and sketch the graph of f(x) = x+6/x-6Find any vertical asymptotes of f(x). Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice.A. The function has one vertical asymptote,(Type an equation.)B. The function has two vertical asymptotes. The leftmost asymptote is and the rightmost asymptote is(Type equations.)C. There are no vertical asymptotes.Find the intervals where f(x) is increasing or decreasing. Select the correct choice below and fill in the answer box(es) to complete your choice.(Type your answer in interval notation. Use a comma to separate answers as needed.)A. The function is increasing onIt is never decreasing.B. The function is increasing onIt is decreasing onC. The function is decreasing onIt is never increasing.Find the location of any local extrema of f(x). Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice.A. There is a local minimum at x =(Type an integer or a decimal. UseB. There is a local maximum at x =(Type an integer or a decimal. UseC. There is a local maximum at x =There is no local maximum.a comma to separate answers as needed.)There is no local minimum.a comma to separate answers as needed.)and there is a local minimum at x =(Type integers or decimals. Use a comma to separate answers as needed.)D. There are no local extrema.Find the intervals where f(x) is concave upward or downward. Select the correct choice below and fill in the answer box(es) to complete your choice.(Type your answer in interval notation. Use a comma to separate answers as needed.)It is never concave downward.A. The function is concave upward on___It is never concave downloadB. The function is concave downward on__It is never concave upward.C. The function is concave upward on___It is concave downward on