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onegirl

  • 3 years ago

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

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  1. onegirl
    • 3 years ago
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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)

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  2. onegirl
    • 3 years ago
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    @Outkast3r09 can u help please?

  3. onegirl
    • 3 years ago
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    @UnkleRhaukus can u help?

  4. UnkleRhaukus
    • 3 years ago
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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

  5. UnkleRhaukus
    • 3 years ago
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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

  6. onegirl
    • 3 years ago
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    hmm ok

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

  8. onegirl
    • 3 years ago
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    soo?

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

  10. onegirl
    • 3 years ago
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    ohh okay

  11. onegirl
    • 3 years ago
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    so the limit will be zero?

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

  13. onegirl
    • 3 years ago
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    okay

  14. onegirl
    • 3 years ago
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    lemme try the second one

  15. onegirl
    • 3 years ago
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    so number 2 will be -1? right?

  16. UnkleRhaukus
    • 3 years ago
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    correct

  17. onegirl
    • 3 years ago
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    ohh i think i'm starting to get this

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

  19. onegirl
    • 3 years ago
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    or will it be undefined?

  20. UnkleRhaukus
    • 3 years ago
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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

  21. UnkleRhaukus
    • 3 years ago
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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

  22. onegirl
    • 3 years ago
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    so it will be positive 2?

  23. UnkleRhaukus
    • 3 years ago
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    um check that again

  24. onegirl
    • 3 years ago
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    ok

  25. onegirl
    • 3 years ago
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    positive 1?

  26. onegirl
    • 3 years ago
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    wait it will be -2

  27. onegirl
    • 3 years ago
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    did i get it?

  28. UnkleRhaukus
    • 3 years ago
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    nope

  29. onegirl
    • 3 years ago
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    okay i'm gonna try again

  30. onegirl
    • 3 years ago
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    it will be -3

  31. UnkleRhaukus
    • 3 years ago
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    how could it be negative?

  32. onegirl
    • 3 years ago
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    oh imeant positive 3

  33. onegirl
    • 3 years ago
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    so is that correct?

  34. UnkleRhaukus
    • 3 years ago
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    thats better

  35. onegirl
    • 3 years ago
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    ok so number 4 will be -1 ?

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

  37. onegirl
    • 3 years ago
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    okay number 5 will be -2?

  38. UnkleRhaukus
    • 3 years ago
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    nope

  39. onegirl
    • 3 years ago
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    hmmm ohh ok so it will be undefined right?

  40. UnkleRhaukus
    • 3 years ago
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    im not sure how you are getting that/

  41. onegirl
    • 3 years ago
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    let me look it again

  42. onegirl
    • 3 years ago
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    it will be positive 2?

  43. onegirl
    • 3 years ago
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    am i right?

  44. UnkleRhaukus
    • 3 years ago
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    it looks more like 1.5 to me

  45. onegirl
    • 3 years ago
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    its close but it hasn't reached the line

  46. onegirl
    • 3 years ago
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    ok

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

  48. UnkleRhaukus
    • 3 years ago
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    what do you think

  49. onegirl
    • 3 years ago
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    it will be it doesnt exist

  50. onegirl
    • 3 years ago
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    right?

  51. UnkleRhaukus
    • 3 years ago
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    why would you say that

  52. onegirl
    • 3 years ago
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    hmmm hold on

  53. onegirl
    • 3 years ago
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    it will be 3?

  54. onegirl
    • 3 years ago
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    did i get it?

  55. UnkleRhaukus
    • 3 years ago
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    a bit less

  56. onegirl
    • 3 years ago
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    2?

  57. onegirl
    • 3 years ago
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    soo?

  58. onegirl
    • 3 years ago
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    are u there?

  59. UnkleRhaukus
    • 3 years ago
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    dosent look like 2 to me

  60. UnkleRhaukus
    • 3 years ago
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    look like about 2.5 to me

  61. onegirl
    • 3 years ago
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    ok thanks

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