A16. lim sin is r+0 x (A) 00 (B) 1 (C) -1 (D) nonexistent A17. Which statement is true about the curve y = 2x2 + 4 2+ 7x - 4x2 (A) The line x = - is a vertical asymptote. 4 (B) The line x = 1 is a vertical asymptote. (C) The line y = -- is a horizontal asymptote. (D) The line y = 2 is a horizontal asymptote.x2 - 1 if x 1 A22. Let f(x) = x- 1 4 if x =1 Which of the following statements is (are) true? I. lim f(x) exists II. A(1) exists III. f is continuous at x = 1 (A) I only (B) II only (C) I and II only (D) I, II, and III\ff ( x ) = 3x(x - 1) x2 - 3x + 2 A24. Suppose A2) = -3 for x * 1, 2 [ A2) = 4 Then f(x) is continuous (A) except at x = 1 (B) except at x = 2 (C) except at x = 1 or 2 (D) at each real number A25. The graph of f(x) 4 has x2 - 1 (A) one vertical asymptote, at x = 1 (B) the y-axis as its vertical asymptote (C) the x-axis as its horizontal asymptote and x = +1 as its vertical asymptotes (D) two vertical asymptotes, at x = +1, but no horizontal asymptote