1.5,+3.5

1.5 1. f(x)= 2 l(x)/(x² - 4)l f(x) ® ∞ 3. f(x)= tan [pi(x)]/ 4 lim x --> -2^- = -∞ lim x --> -2^+= ∞ Worked by Krissy Denby Correct checked by Will McCrocklin 4. f(x)= sec [pi(x)]/4 lim x --> -2^- = ∞ lim x --> -2^+= -∞ Worked by Krissy Denby

5. F(x)= 1/x^2-9 x | -3.5 | -3.1 | -3.01 | -3.001 f(x) | .31 | 1.64 | 16.6. | 167

x | -2.999 | -2.99 | -2.9 | -2.5 f(x) | -167. | -16.7. | -1.69 | -.36

lim f(x) = -infinity. Lim f(x) = infinity x--> -3+. x--> -3-

worked by Alex Stevens

2. f(x)= 1/(x+2) x ® -2 left ® -∞ x ® -2 right ® ∞ Worked by Rachel Pearce Checked by Drew Galbraith

3-8 checked by Bryan Rucker?

33. negative infinity 37. 0.8 43. positive infinity worked by emily othold Correct Checked by Neil Klenk

3.5

3. f 4. c 5. d 6. a 7. b 8. e
 * 1) 3-8 worked by aaron henderson

15.(a) positive infinity (b) 5 (c) 0 worked by Nolan Blair 27, 29, 31 Worked by Audrey Luecken correct. checked by Hyun Bang

33. lim x --> infinity (1/2x + sinx) 0

39. lim x --> infinity x(sin 1/x) 1

worked by Annie Dailey correct! checked by Ellen Wagner

40. lim x--> infinity x(tan1/x) 1 Worked by Brice Simpson Checked by Abby Newton

16.) (p.205) f(x)= 5x^2-3x+7 a. DNE b. 5 c. 0 Worked by Jonathan Cox

49) x= ∞ Worked and checked by Jason Sham