Follow the seven step strategy to graph the following rational function. x2 +4x -45 f(x) = x2 - 9 To graph the function, first determine the symmetry of the graph of f. Choose the correct answer below. y-axis symmetry O origin symmetry O neither y-axis symmetry nor origin symmetry What is the y-intercept? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The y-intercept is (Type an integer or a simplified fraction.) O B. There is no y-intercept. What is/are the x-intercept(s)? Select the correct choice below and, if necessary, fill in the answer box to complete your choice O A. The x-intercept(s) is/are (Type an integer or a simplified fraction. Use a comma to separate answers as needed,) O B. There are no x-intercepts. amplete your choice