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thebroski

  • 2 years ago

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

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  1. snowskimwake
    • 2 years ago
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    Do you know how to start it?

  2. thebroski
    • 2 years ago
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    no

  3. snowskimwake
    • 2 years ago
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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

  4. thebroski
    • 2 years ago
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    ok

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

  6. thebroski
    • 2 years ago
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    i dont even know what im looking at

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

  8. snowskimwake
    • 2 years ago
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    simplify not solve

  9. thebroski
    • 2 years ago
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    how do i do that?

  10. Jasmineflvs
    • 2 years ago
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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

  11. snowskimwake
    • 2 years ago
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    simplify? just distribute the parenthesis

  12. Jasmineflvs
    • 2 years ago
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    no not yet

  13. snowskimwake
    • 2 years ago
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    yes you would, from what I said he would

  14. snowskimwake
    • 2 years ago
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    I already went through putting the function g into the function f

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

  16. Jasmineflvs
    • 2 years ago
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    i think

  17. thebroski
    • 2 years ago
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    ;__; what do i do

  18. snowskimwake
    • 2 years ago
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    no you would not

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

  20. Jasmineflvs
    • 2 years ago
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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

  21. thebroski
    • 2 years ago
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    algebra

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

  23. Jasmineflvs
    • 2 years ago
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    i mean like equation....ect.

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

  25. snowskimwake
    • 2 years ago
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    so b

  26. Jasmineflvs
    • 2 years ago
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    lets have two opinions first kk

  27. snowskimwake
    • 2 years ago
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    No it is b I promise you

  28. thebroski
    • 2 years ago
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    im going to cry

  29. snowskimwake
    • 2 years ago
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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

  30. Jasmineflvs
    • 2 years ago
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    no lets get two opinions and dont cry

  31. snowskimwake
    • 2 years ago
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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)

  32. snowskimwake
    • 2 years ago
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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

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

  34. thebroski
    • 2 years ago
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    thats racists

  35. Jasmineflvs
    • 2 years ago
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    ???

  36. Jasmineflvs
    • 2 years ago
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    how?? may i ask

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

  38. Jasmineflvs
    • 2 years ago
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    ??? still dont understand why it is racist

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

  40. Jasmineflvs
    • 2 years ago
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    let me guess you got the answer

  41. thebroski
    • 2 years ago
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    no im just terrible at math

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

  43. Jasmineflvs
    • 2 years ago
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    that's okay

  44. snowskimwake
    • 2 years ago
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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

  45. snowskimwake
    • 2 years ago
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    ?

  46. Jasmineflvs
    • 2 years ago
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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

  47. thebroski
    • 2 years ago
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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

  48. Jasmineflvs
    • 2 years ago
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    lolz

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

  50. Jasmineflvs
    • 2 years ago
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    @sasogeek @Hero @jim_thompson5910 @cwrw238 plz help him

  51. UsArmy3947
    • 2 years ago
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    ok got the answer

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

  53. thebroski
    • 2 years ago
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    wut

  54. UsArmy3947
    • 2 years ago
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    thats the answer

  55. thebroski
    • 2 years ago
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    oh right

  56. UsArmy3947
    • 2 years ago
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    sorry sir if u want help be more nicer

  57. thebroski
    • 2 years ago
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    what do you mean

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

  59. sasogeek
    • 2 years ago
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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

  60. UsArmy3947
    • 2 years ago
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    dont say any thing without thinking this is a Moderator

  61. thebroski
    • 2 years ago
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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.

  62. thebroski
    • 2 years ago
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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

  63. sasogeek
    • 2 years ago
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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 :)

  64. thebroski
    • 2 years ago
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    ok

  65. UsArmy3947
    • 2 years ago
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    ya i could also help u

  66. thebroski
    • 2 years ago
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    Tango Hotel Alpha November Kilo Yankee Oscar Uniform

  67. UsArmy3947
    • 2 years ago
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    what?

  68. thebroski
    • 2 years ago
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    it means thank you

  69. UsArmy3947
    • 2 years ago
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    no problem ill be leaving now bye

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