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AcidRa1n

  • 3 years ago

Determine whether y varies directly with x. If so find the constant variation. y = 12x ****** The answer is Yes; 12 I dont understand how this is the answer. Can someone help me?

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  1. Nameless
    • 3 years ago
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    my guess would be that its because y is equal to whatever 12(x) is going to be.

  2. Nameless
    • 3 years ago
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    but that seems too easy

  3. AcidRa1n
    • 3 years ago
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    i know. How about y = 4x+1

  4. AcidRa1n
    • 3 years ago
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    the asnwer is no

  5. Nameless
    • 3 years ago
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    i am probably in over my head.. sorry

  6. lgbasallote
    • 3 years ago
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    here's something you can remember... if y and x are in one line...then it's a direct variation if either y or x is in the denominator...then inverse variation

  7. lgbasallote
    • 3 years ago
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    \[y = kx \leftarrow \; \text{direct variation}\] \[y = \frac kx \leftarrow \; \text{inverse variation}\]

  8. AcidRa1n
    • 3 years ago
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    ok so how does that apply to my first problem

  9. lgbasallote
    • 3 years ago
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    y = 12x <--in the for y = kx <--can you see that?

  10. lgbasallote
    • 3 years ago
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    in the form*

  11. AcidRa1n
    • 3 years ago
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    oh ok so how does it arie directly with x.. Im sorry im just not seeing the picture

  12. AcidRa1n
    • 3 years ago
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    varie* My teacher isnt that good

  13. lgbasallote
    • 3 years ago
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    look at what i said above about y = kx

  14. AcidRa1n
    • 3 years ago
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    yeah I know but what does K mean how the flutter does it varie with anything?

  15. lgbasallote
    • 3 years ago
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    k is a constant

  16. lgbasallote
    • 3 years ago
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    it is called the proportionality constant

  17. lgbasallote
    • 3 years ago
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    it means its value doesnt matter because it is constant..in other words...always stays the same

  18. AcidRa1n
    • 3 years ago
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    ok now I get why 12 is there.. So now explain the rest please?

  19. lgbasallote
    • 3 years ago
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    in your terms... k is the constant variation

  20. lgbasallote
    • 3 years ago
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    first tell me... do you agree that y = 12x is in the form y = kx?

  21. AcidRa1n
    • 3 years ago
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    is y = k? which is 12? and how does that varie to x?

  22. AcidRa1n
    • 3 years ago
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    Yeah I get that

  23. lgbasallote
    • 3 years ago
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    what do you see as difference between \[\huge y = kx\] and \[\huge y = 12x\]

  24. AcidRa1n
    • 3 years ago
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    yeah I see that

  25. lgbasallote
    • 3 years ago
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    spot the difference

  26. lgbasallote
    • 3 years ago
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    not the similarity

  27. AcidRa1n
    • 3 years ago
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    yeah

  28. lgbasallote
    • 3 years ago
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    what do you mean yeah?

  29. AcidRa1n
    • 3 years ago
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    I spot the difference

  30. lgbasallote
    • 3 years ago
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    what's the difference??

  31. AcidRa1n
    • 3 years ago
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    12 instead of K

  32. lgbasallote
    • 3 years ago
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    RIGHT! that's why 12 is the constant variation

  33. lgbasallote
    • 3 years ago
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    because k is the constant variation..and k = 12

  34. AcidRa1n
    • 3 years ago
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    ohhh K= Constant Variationnnnnn

  35. lgbasallote
    • 3 years ago
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    yes!

  36. AcidRa1n
    • 3 years ago
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    lmfao face to palm**

  37. AcidRa1n
    • 3 years ago
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    ok so what about this one y = 4x + 1

  38. lgbasallote
    • 3 years ago
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    the answer to that one was "NOT direct variation" right?

  39. AcidRa1n
    • 3 years ago
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    yes

  40. lgbasallote
    • 3 years ago
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    that's because of the 1 y = 4x + 1 is not in the form y = kx because of that 1

  41. AcidRa1n
    • 3 years ago
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    what about y - 6x = 0

  42. AcidRa1n
    • 3 years ago
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    ;)

  43. lgbasallote
    • 3 years ago
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    simplify it first

  44. lgbasallote
    • 3 years ago
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    solve for y first

  45. AcidRa1n
    • 3 years ago
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    can you do it?

  46. AcidRa1n
    • 3 years ago
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    I dont wnana get confused

  47. lgbasallote
    • 3 years ago
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    add 6x to both sides

  48. AcidRa1n
    • 3 years ago
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    add 6 to 0?

  49. lgbasallote
    • 3 years ago
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    6x..not 6

  50. AcidRa1n
    • 3 years ago
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    yeah

  51. AcidRa1n
    • 3 years ago
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    y-=6x?

  52. AcidRa1n
    • 3 years ago
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    im a idiot

  53. lgbasallote
    • 3 years ago
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    y-?

  54. AcidRa1n
    • 3 years ago
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    lmfao it was negative

  55. AcidRa1n
    • 3 years ago
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    OH NVM

  56. AcidRa1n
    • 3 years ago
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    alright so the answer is 6!

  57. lgbasallote
    • 3 years ago
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    yes

  58. AcidRa1n
    • 3 years ago
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    what about y _ 3 = -3x

  59. AcidRa1n
    • 3 years ago
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    -

  60. lgbasallote
    • 3 years ago
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    what do you think?

  61. AcidRa1n
    • 3 years ago
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    add 3 to both sides

  62. AcidRa1n
    • 3 years ago
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    y= x?

  63. lgbasallote
    • 3 years ago
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    you can't combine 3 and 3x

  64. AcidRa1n
    • 3 years ago
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    is that a constant variation?

  65. lgbasallote
    • 3 years ago
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    no..im just talking about algebra

  66. AcidRa1n
    • 3 years ago
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    Ah forget about that one can you help me with proportions? i'll open up a new question

  67. lgbasallote
    • 3 years ago
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    i have to go soon

  68. AcidRa1n
    • 3 years ago
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    awe ur like the best lol

  69. lgbasallote
    • 3 years ago
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    call saifoo or amistre

  70. AcidRa1n
    • 3 years ago
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    eh Saifoo is a fool now he used to be cool

  71. AcidRa1n
    • 3 years ago
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    amistre doesnt help me anymore

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