Find the relative extreme points of the function, if they exist. Then sketch a graph of the function. r(x)=x312x+7 Identify all the relative minimum points. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O 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, ll in the answer box 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. OA. OB. IIHUI