Homework: Assignment 3 Question 8, 3.1.39-T HW Score: 15.63%, 5 of 32 points Part 1 of 3 O Points: 0 of 1 1 (X0 + h) -1 (X0 ) continuous curve y = f(x) has a vertical tangent line at the point where x = X if lim 5 00 Or - Do. h - 0 h Graph the curve y = x . Where does the graph appear to have vertical tangent lines? . Confirm your findings in part (a) with limit calculations. a. Select the correct graph below. The graphs are shown in a [ - 10,10] by [ - 10,10] viewing window. O A. O B. O C. OD