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onegirl

Help please? state the limit and if there is not limit say that limit doesn't exist.

  • one year ago
  • one year ago

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  1. onegirl
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    1) lim x-> -1 f(x) 2) lim x-> 2- f(x) 3) lim x-> 2+ f(x) 4) lim x-> 2 f(x) 5) lim x-> -2 f(x) 6) lim x-> 3f(x)

    • one year ago
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  2. onegirl
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    @Outkast3r09 can u help please?

    • one year ago
  3. onegirl
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    @UnkleRhaukus can u help?

    • one year ago
  4. UnkleRhaukus
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    \[\lim\limits_{ x\to -1} f(x)\] is the height of the blue line above x=-1 on the x-axis

    • one year ago
  5. UnkleRhaukus
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    \[\lim\limits_{ x\to 2^-} f(x)\] is the height of the blue line above the point just before 2 on the x axis

    • one year ago
  6. onegirl
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    hmm ok

    • one year ago
  7. onegirl
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    so for the first one it will be -2?

    • one year ago
  8. onegirl
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    soo?

    • one year ago
  9. UnkleRhaukus
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    no. the blue line is crossing the axis at x=-1, so the height is zero here

    • one year ago
  10. onegirl
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    ohh okay

    • one year ago
  11. onegirl
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    so the limit will be zero?

    • one year ago
  12. UnkleRhaukus
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    yeah for the first one thats right

    • one year ago
  13. onegirl
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    okay

    • one year ago
  14. onegirl
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    lemme try the second one

    • one year ago
  15. onegirl
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    so number 2 will be -1? right?

    • one year ago
  16. UnkleRhaukus
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    correct

    • one year ago
  17. onegirl
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    ohh i think i'm starting to get this

    • one year ago
  18. onegirl
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    hmm for number 3 will the open circle count?

    • one year ago
  19. onegirl
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    or will it be undefined?

    • one year ago
  20. UnkleRhaukus
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    \[\lim\limits_{ x\to 2^+} f(x)\] is where x is a little bit to the right of 2 so is a tiny bit to the right of the open circle

    • one year ago
  21. UnkleRhaukus
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    if you were looking for the limit as \[x\to 2\] and both circles were open then it would be undefined

    • one year ago
  22. onegirl
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    so it will be positive 2?

    • one year ago
  23. UnkleRhaukus
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    um check that again

    • one year ago
  24. onegirl
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    ok

    • one year ago
  25. onegirl
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    positive 1?

    • one year ago
  26. onegirl
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    wait it will be -2

    • one year ago
  27. onegirl
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    did i get it?

    • one year ago
  28. UnkleRhaukus
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    nope

    • one year ago
  29. onegirl
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    okay i'm gonna try again

    • one year ago
  30. onegirl
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    it will be -3

    • one year ago
  31. UnkleRhaukus
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    how could it be negative?

    • one year ago
  32. onegirl
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    oh imeant positive 3

    • one year ago
  33. onegirl
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    so is that correct?

    • one year ago
  34. UnkleRhaukus
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    thats better

    • one year ago
  35. onegirl
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    ok so number 4 will be -1 ?

    • one year ago
  36. UnkleRhaukus
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    thats right, ( note that if the lower circle was open then it would be undefined)

    • one year ago
  37. onegirl
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    okay number 5 will be -2?

    • one year ago
  38. UnkleRhaukus
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    nope

    • one year ago
  39. onegirl
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    hmmm ohh ok so it will be undefined right?

    • one year ago
  40. UnkleRhaukus
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    im not sure how you are getting that/

    • one year ago
  41. onegirl
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    let me look it again

    • one year ago
  42. onegirl
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    it will be positive 2?

    • one year ago
  43. onegirl
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    am i right?

    • one year ago
  44. UnkleRhaukus
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    it looks more like 1.5 to me

    • one year ago
  45. onegirl
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    its close but it hasn't reached the line

    • one year ago
  46. onegirl
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    ok

    • one year ago
  47. onegirl
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    how about the last one? its tricky

    • one year ago
  48. UnkleRhaukus
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    what do you think

    • one year ago
  49. onegirl
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    it will be it doesnt exist

    • one year ago
  50. onegirl
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    right?

    • one year ago
  51. UnkleRhaukus
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    why would you say that

    • one year ago
  52. onegirl
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    hmmm hold on

    • one year ago
  53. onegirl
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    it will be 3?

    • one year ago
  54. onegirl
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    did i get it?

    • one year ago
  55. UnkleRhaukus
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    a bit less

    • one year ago
  56. onegirl
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    2?

    • one year ago
  57. onegirl
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    soo?

    • one year ago
  58. onegirl
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    are u there?

    • one year ago
  59. UnkleRhaukus
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    dosent look like 2 to me

    • one year ago
  60. UnkleRhaukus
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    look like about 2.5 to me

    • one year ago
  61. onegirl
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    ok thanks

    • one year ago
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