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thebroski

Let f(x) = -4x + 7 and g(x) = 10x - 6, find f(g(x)). -40x + 24 -40x + 31 -40x + 64 -40x + 70

  • 8 months ago
  • 8 months ago

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  1. snowskimwake
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    Do you know how to start it?

    • 8 months ago
  2. thebroski
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    no

    • 8 months ago
  3. snowskimwake
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    Alright g is on the inside, so you are going to put the function g, into the x of the function f

    • 8 months ago
  4. thebroski
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    ok

    • 8 months ago
  5. snowskimwake
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    Does that make sense? Are you able to do it now?

    • 8 months ago
  6. thebroski
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    i dont even know what im looking at

    • 8 months ago
  7. snowskimwake
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    haha alright here, -4(10x-6) + 7 I put g(x) into f(x) now just solve

    • 8 months ago
  8. snowskimwake
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    simplify not solve

    • 8 months ago
  9. thebroski
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    how do i do that?

    • 8 months ago
  10. Jasmineflvs
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    first analyze it the question is find f(g(x)) you already know that f(x) = -4x + 7 and g(x) = 10x - 6...but in the question there is no f(x) but there is just an f so what would you do to find f

    • 8 months ago
  11. snowskimwake
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    simplify? just distribute the parenthesis

    • 8 months ago
  12. Jasmineflvs
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    no not yet

    • 8 months ago
  13. snowskimwake
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    yes you would, from what I said he would

    • 8 months ago
  14. snowskimwake
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    I already went through putting the function g into the function f

    • 8 months ago
  15. Jasmineflvs
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    you would take away the x from the equation so it would be f=-4+7

    • 8 months ago
  16. Jasmineflvs
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    i think

    • 8 months ago
  17. thebroski
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    ;__; what do i do

    • 8 months ago
  18. snowskimwake
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    no you would not

    • 8 months ago
  19. snowskimwake
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    listen to me, you have f(x) = -4(10x-6) + 7

    • 8 months ago
  20. Jasmineflvs
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    i'm sorry i'll try to find a link that can help you..kk..first what kind of problem is this

    • 8 months ago
  21. thebroski
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    algebra

    • 8 months ago
  22. snowskimwake
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    then you just simplify f(x) = -4(10x-6) + 7 -40x + 24 + 7

    • 8 months ago
  23. Jasmineflvs
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    i mean like equation....ect.

    • 8 months ago
  24. snowskimwake
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    f(x) = -40x + 31, and that is your answer

    • 8 months ago
  25. snowskimwake
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    so b

    • 8 months ago
  26. Jasmineflvs
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    lets have two opinions first kk

    • 8 months ago
  27. snowskimwake
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    No it is b I promise you

    • 8 months ago
  28. thebroski
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    im going to cry

    • 8 months ago
  29. snowskimwake
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    jasmineflvs I came up with one of the answers, you told him to eliminate the x which you DO NOT DO. I promise you it is b, I can show you again if you like

    • 8 months ago
  30. Jasmineflvs
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    no lets get two opinions and dont cry

    • 8 months ago
  31. snowskimwake
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    Why does he need two opinions? alright thebroski I want you to work it out yourself, start by putting g(x) into the x in f(x)

    • 8 months ago
  32. snowskimwake
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    f(x) = -4x + 7 and g(x) = 10x - 6, so g(x) goes into f(x = -4(g(x) goes here) + 7

    • 8 months ago
  33. Jasmineflvs
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    just a sec kkk i'll get it and if you were rigght ill give you a medal..kk

    • 8 months ago
  34. thebroski
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    thats racists

    • 8 months ago
  35. Jasmineflvs
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    ???

    • 8 months ago
  36. Jasmineflvs
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    how?? may i ask

    • 8 months ago
  37. thebroski
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    .just a sec ((kkk))) i'll get it and if you were rigght ill give you a medal..kk

    • 8 months ago
  38. Jasmineflvs
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    ??? still dont understand why it is racist

    • 8 months ago
  39. thebroski
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    Let f(x) = 2x + 2. Solve f-1(x) when x = 4. 1 3 4 10

    • 8 months ago
  40. Jasmineflvs
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    let me guess you got the answer

    • 8 months ago
  41. thebroski
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    no im just terrible at math

    • 8 months ago
  42. snowskimwake
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    f^-1(x) is an inverse equation

    • 8 months ago
  43. Jasmineflvs
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    that's okay

    • 8 months ago
  44. snowskimwake
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    you need to switch the spots of x and y in the equation given and the solve for y, make sense

    • 8 months ago
  45. snowskimwake
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    ?

    • 8 months ago
  46. Jasmineflvs
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    sorry i can't help you on functions i am behind in Algebra...I'm in 10th grade and I'm still in Algebra 1...sorwie

    • 8 months ago
  47. thebroski
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    im in 10th to but math is not my subject i dont understand any of it except 2+2 thats all i understand

    • 8 months ago
  48. Jasmineflvs
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    lolz

    • 8 months ago
  49. Jasmineflvs
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    i'm getting a friend to help you on this one

    • 8 months ago
  50. Jasmineflvs
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    @sasogeek @Hero @jim_thompson5910 @cwrw238 plz help him

    • 8 months ago
  51. UsArmy3947
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    ok got the answer

    • 8 months ago
  52. UsArmy3947
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    here f(10x-6)=31-40x

    • 8 months ago
  53. thebroski
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    wut

    • 8 months ago
  54. UsArmy3947
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    thats the answer

    • 8 months ago
  55. thebroski
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    oh right

    • 8 months ago
  56. UsArmy3947
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    sorry sir if u want help be more nicer

    • 8 months ago
  57. thebroski
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    what do you mean

    • 8 months ago
  58. thebroski
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    .Let f(x) = 2x + 2. Solve f-1(x) when x = 4. 1 3 4 10

    • 8 months ago
  59. sasogeek
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    thebroski, if you're not going to put some effort into understanding the concept of the answer, no one can really help you. stop posting questions with multiple choice answers if you're not ready to learn

    • 8 months ago
  60. UsArmy3947
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    dont say any thing without thinking this is a Moderator

    • 8 months ago
  61. thebroski
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    i am trying to put effort into this its just that i have a problem with understanding things im just kinda slow.

    • 8 months ago
  62. thebroski
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    btw i really dont care if ur the moderator it doesnt give you the right to ban someone because they need help with questions

    • 8 months ago
  63. sasogeek
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    i'm not going to ban u for asking for help, in fact i'll help you if i can. it just doesnt seem like u really want the help though. sounds like u just want the answer cos it's quite a long thread and u still don't get it... reposting the question with the possible answers doesn't get u so far on this site. be patient, and try at least, to understand :)

    • 8 months ago
  64. thebroski
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    ok

    • 8 months ago
  65. UsArmy3947
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    ya i could also help u

    • 8 months ago
  66. thebroski
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    Tango Hotel Alpha November Kilo Yankee Oscar Uniform

    • 8 months ago
  67. UsArmy3947
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    what?

    • 8 months ago
  68. thebroski
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    it means thank you

    • 8 months ago
  69. UsArmy3947
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    no problem ill be leaving now bye

    • 8 months ago
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