5. I figured out the graph but I am having issues with the relatitive mini and max

Find the relative extreme points of the function, if they exist. Then sketch a graph of the function "(x)=x -3x+9 Identify all the relative minimum points. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. ( A. The relative minimum point(s) Is/are (Simplify your answer. Use integers or fractions for any numbers in the expression, Type an ordered pair. Use a comma to separate answers as needed.) O B. There are no relative minimum points. Identify all the relative maximum points. Select the correct choice below and, if necessary, fill in the answer bax to complete your choice. O A. The relative maximum point(s) is/are (Simplify your answer. Use integers or fractions for any numbers in the expression. Type an ordered pair. Use a comma to separate answers as needed.) O B. There are no relative maximum points. Graph the function. Choose the correct graph below