A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Write a function rule for the table. x f(x) –3 –6 –2 –4 –1 –2 0 0 f(x)=-2x f(x)=2x f(x)=x + 2 F(x) = x -2

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @LynFran

  2. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @AngusV

  3. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @LynFran

  4. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1442973478841:dw|do u see a trend??

  5. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    add 2?

  6. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    no -1+2=1 -2+2=0 -3+2=-1

  7. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok?

  8. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    how about multiply by 2

  9. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yeah

  10. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    so -1*2=-2 -2*2=-4 -3*2=-6

  11. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so A?

  12. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    no

  13. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok. so what is it?

  14. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    f(x)=-2x means f(0)=-2(0)=0 f(-1)=-2(-1)=2 f(-2)=-2(-2)=4 f(-3)=-2(-3)=6 this give positive values for the output(range/y-value)

  15. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    and we need negative range

  16. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    so which option is correct

  17. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    A? or D?

  18. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    cant be D...

  19. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    a

  20. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    no not a

  21. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    a is f(x)=-2x

  22. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    b

  23. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes

  24. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    post the other questions here let me see if i can answer it...

  25. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Suppose that y varies inversely with x. Write an equation for the inverse variation. y = 4 when x = 7 y = x/28 x = y/3 y = 3x y =28/x

  26. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    y=k/x

  27. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    4=k/7

  28. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    4*7=k

  29. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    c

  30. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    no

  31. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    what 4*7=??

  32. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    28

  33. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes so k=28

  34. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    28/x

  35. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    now y=k/x

  36. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    sub ur k" value in ^^

  37. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    d

  38. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes thats correct

  39. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    next question..

  40. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Find the first, fourth, and tenth terms of the arithmetic sequence described by the given rule. A(n) = 1 + (n-1) (-5.7) 1, –16.1, –50.3 –5.7, –21.8, –51.3 0, –17.1, –51.3 1, –21.8, –56

  41. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Find the first, fourth, and tenth terms of the arithmetic sequence described by the given rule. A(n) = 1 + (n-1) (-5.7) 1, –16.1, –50.3 –5.7, –21.8, –51.3 0, –17.1, –51.3 1, –21.8, –56

  42. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    n represent first , fourth and tenth term so A(1)=1+(1-1)(-5.7) whats did u get for the 1st term likewise ; A(4)=1+(4-1)(-5.7) what did u get for the 4th term ...the 10th term can be done like the two above

  43. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Thats what I have a problem with. I either get b or d

  44. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    no u get 1 and only...and its not b nor c ...

  45. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    a or d

  46. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    well we see that the first term is 1

  47. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    the 4th term A(4)=1+(4-1)(-5.7) = 1+(3)(-5.7) what 3*-5.7=? then add 1 to answer in above step

  48. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    17.1

  49. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    16.1

  50. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    A

  51. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    3*-5.7=-17.1

  52. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    -17.1+1=-16.1

  53. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Write a function rule for the table. x f(x) –1 0 0 1 1 2 2 3 f(x) = -1 - x f (x) = x-1 f (x)=x f (x)= x +1

  54. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    what do u think??..

  55. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    b or d

  56. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1442975332107:dw|

  57. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    hmmm

  58. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    cant be b

  59. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    d?

  60. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes it is

  61. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    how much more problem we have??

  62. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Find the constant of variation k for the inverse variation. Then write an equation for the inverse variation. y = 5 when x = 7.5 k=15;xy=1.5 k=2.5;y=2.5/x k=37.5;y=37.5x k=37.5;y= 37.5/x

  63. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    whats the inverse variation??

  64. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    b

  65. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    i need u to tell me the inverse variation formula...i give u it like 3 time already...

  66. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    y=k/x

  67. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    y=k/x

  68. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    when y=5 , x=7.5 so substituting these values we get 5=k/7.5 5*7.5=k

  69. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    37.5

  70. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes 37.5=k

  71. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    now the formula y=k/x sub our value for k" int it

  72. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    y=37.5/x D?

  73. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes

  74. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    was that the last question??

  75. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Does the data in the table represent a direct variation or an inverse variation? Write an equation to model the data in the table. x 6 8 12 20 y 9 12 18 30 inverse variation; xy = 54 direct variation; y = 1.5x direct variation; y = 2/3x inverse variation; xy = 1.5

  76. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    ok its not inverse varition

  77. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    1.5X

  78. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes

  79. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Find the range of f(x)=-2x-5 for the domain (-2,-1,1,2).\ (-1,-3,-7,-9) (-1,-3,7,9) (1,3,5,7) (-1,-3,3,5)

  80. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    is this the last question??

  81. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes

  82. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    -1,-3,-7,-9

  83. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    good night..off to bed

  84. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Thank you very much

  85. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    welcome

  86. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.