5 Summarize the pertinent information obtained by applying the graphing strategy and sketch the graph of f(x) = 1+ 5x LIV IN (Type an exact answer in simplified form. Type your answer in interval notation. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.) &c. V15 1/15 The function is concave upward on - Oo , 15 15 0 . It is concave downward on 15 15 15 15 (Type exact answers in simplified form. Type your answers in interval notation. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.) Find the location of any inflection points of f(x). Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. There is an inflection point at x = (Type an exact answer, using radicals as needed. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.) O B. There are no inflection points