REVIEW CHAPTER 1 No Calculator: 1. What is lim x (A) 9x 2 2 ? 4x 3 3 2 (B) 2. What is lim x 2 3 3 4 (C) 1 2 (C) 1 (D) 1 (E) The limit does not exist. 3 2 (E) The limit does not exist. (D) 2 (E) The limit does not exist. x 1 ? x 1 (A) 0 (B) (D) x2 6 ? x 2 x 3 x 2 3. What is lim (B) (A) -3 1 3 (C) 1 3 x x 4. lim is x 0 (A) 1 5. lim x 0 (B) 0 (C) ∞ (D) -1 (E) Nonexistent (B) ½ (C) 2/3 (D) 3/2 (E) ∞ (B) -1 (C) 0 (D) 3 (E) ∞ (B) = 1/5 (C) =1 (D) = 5 (E) Does not exist (B) 1/3 (C) 3 (D) ∞ (E) ¼ tan 3x = 2x (A) 0 5 x 3 27 is x 20 x 2 10 x 9 6. lim (A) -∞ 7. lim x 0 sin 5 x x (A) =0 8. lim x 0 (A) 1 sin x is x 2 3x 3x 2 4 ? x 2 7 x x 2 9. What is lim (A) 3 (B) 1 (C) -3 (D) ∞ (E) 0 (C) 1 (D) 3 (E) The limit does not exist. (B) 0 (C) 1 (D) 2 (E) the limit does not exist. (B) -1 (C) 10 (D) 1 (E) 2 (D) -1 (E) None of these 3x 2 1 ? x (3 x )(3 x ) 10. What is lim (A) -9 (B) -3 1 1 ? 11. What is lim x 1 x 0 x (A) -1 12. lim x 1 x 2 2x 3 x2 1 (A) -2 |x| is x 0 x 13. lim (A) 0 (B) nonexistent x2 1 14. Let f ( x) x 1 4 I. lim f ( x) x 1 if (C) 1 x 1 Which of the following statements is (are) true? if x 1 exist II. f(1) exists III. f is continuous at x=1 (A) I only (B) II only (C) I and II only (D) None (E) I, II and III 15. What is lim x x ? x 0 (A) = 0 (B) = 1 (C) = e (D) = ∞ (E) Does not exist. 16. The function f is continuous at x =1 . x 3 3x 1 x 1 If f ( x) k (A) 0 for x 1 then k= for (B) 1 x 1 (C) 1 2 17. Which statement is true about the curve y (D) 1 2 (E) none of the above 2x 2 4 ? 2 7 x 4x 2 (A) The line x = -1/4 is a vertical asymptote (B) The line x = 1 is a vertical asymptote (C) The line y = -1/4 is a horizontal asymptote (D) The graph has no vertical or horizontal asymptote (E) The line y = 2 is a horizontal asymptote 18. Which of the following is true about the function f if f ( x) ( x 1) 2 ? 2 x 2 5x 3 I. f is continuous at x = 1. II. The graph of f has a vertical asymptote at x = 1. III. The graph of f has a horizontal asymptote at y = (A) I only (B) II only 1 . 2 (C) III only (D) II and III only (E) I, II, and III (C) I and II only (D) II and III only (E) I, II, III (C) -5 (D) -1 (E) 3 19. Which of the following is continuous at x = 1? I. f(x) = |x – 1| II. f(x) = ex-1 III. f(x) = ln(ex-1 – 1) (A) I only (B) II only 20. If f(x) = x3 – 2x – 1, then f(-2) = (A) -17 (B) -13 21. The domain of (A) all x≠0,1 x2 is x x 2 (B) x ≤2, x≠0,1 (C) x≤2 (D) x≥2 (E) x>2 22. If f(x) = x3 + Ax2 + Bx – 3 and if f(1) = 4 and f(-1) = -6, what is the value of 2A + B? (A) 12 (B) 8 (C) 0 (D) -2 (E) Cannot be determined 23. Which of the following function is NOT odd? (A) f ( x) sin x (B) f ( x) sin 2 x (C) f ( x) x 3 1 (D) f ( x) x x 1 2 (E) f ( x) 3 2 x 24. Which of the following is a reflection of the graph of y = f(x) over the x-axis? (A) y = -f(x) (B) y = f(-x) (C) y = |f(x)| (D) y = f(|x|) (E) y = -f(-x) 25. The set of x-intercepts of the graph of f(x) = x3 – 2x2 – x + 2 is (A) {1} (B) {-1, 1} (C) {1,2} (D) {-1,1,2} (E) {-1,-2,2} (D) {2} (E) {2,-2} 26. The set of zeros of f(x) = x3 + 4x2 + 4x is (A) {-2} (B) {0,-2} (C) (0,2} 27. The values of x for which the graphs of y = x + 2 and y2 = 4x intersect are (A) -2 and 2 (B) -2 (C) 2 (D) 0 (E) None of these 28. Let f(x) have an inverse function g(x). Then f(g(x)) = (A) 1 (B) x 2 3 29. The period of f ( x) sin (A) 1 3 (B) 2 3 (C) 1 x (D) f(x)∙g(x) (E) None of these (C) 3 2 (D) 3 (E) 6 x is CALCULATOR SECTION: 30. The function f is defined on the interval [-4,4] and its graph is shown to the right. Which of the following statements are true? I. lim f ( x) 1 x 1 II. lim f ( x) f (3) x 1 III. f (2) 0 (A) I only (B) II only (C) I and II only (D) II and III only (E) I, II, III (D) ∞ (E) Nonexistent x 2 / x if x 0 31. The function f ( x) 0 if x 0 (A) (B) (C) (D) (E) is continuous everywhere is continuous except at x = 0 has a removable discontinuity at x = 0 has an infinite discontinuity at x=0 has x=0 as a vertical asymptote 32. lim[ x] (where [x] is the greatest integer in x) is x 2 (A) 1 (B) 2 (C) 3 33 Which function could have the graph shown to the right? x x 1 2x (C) y 2 x 1 4x (E) y x 1 (A) y 2 4x x 1 x2 3 (D) y 2 x 1 (B) y 2 34. The graph of a function f is shown to the right. Which of the following statements about f is false? (A) lim f ( x) lim f ( x) xa xa (B) lim f ( x) f (a ) x a (C) f(a) > 0 (D) rule 3 fails for continuity (E) lim f ( x) f (a) x a x 2 kx 3 35. The function f is defined on all the reals such that f ( x) 3x b for x 1 for x 1 For which of the following values of k and b will the function be continuous on its entire domain? (A) k=-1, b=-3 36. The graph of y (B) k=1, b=3 (C) k=1, b=4 (D) k=1, b=-4 (E) k=-1, b=6 (C) III only (D) I and III only (E) II and III only sin x has x I. a vertical asymptote at x = 0 II. a horizontal asymptote at y = 0 III. an infinite number of zeros (A) I only (B) II only 37. For what value(s) of a is it true that lim f ( x ) exists and f(a) x a exists, but lim f ( x) f (a) ? It is possible that a= x a (A) -1 only (C) 2 only (E) -1 or 2 only (B) 1 only (D) -1 and 1 only 38. Which statements about limits at x = 1 are true? I. lim f ( x) exists II. lim f ( x) exists III. lim f ( x ) exists x 1 x 1 x 1 (A) None of I, II, or III (B) I only 39. A function f(x) equals (C) II only (D) I and II only (E) I, II, and III x2 x for all x except x = 1. For the function to be continuous at x = 1, the value of f(1) must x 1 be (A) 0 (B) 1 (C) 2 (D) e (E) ∞