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Katieann16

Help Meeee ):

  • one year ago
  • one year ago

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  1. Katieann16
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    if f(x)= 3/x & g(x)=3x which is true? A) (fog)(2)=2 B) (gof)(0)=0 C) (fog)(9)=1 D) (gof)(-9)=-1

    • one year ago
  2. Katieann16
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    @zordoloom

    • one year ago
  3. jim_thompson5910
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    first can you tell me what g(2) is?

    • one year ago
  4. Katieann16
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    no

    • one year ago
  5. jim_thompson5910
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    g(x) = 3x g(2) = 3*2 ... replace EVERY x with 2 g(2) = 6

    • one year ago
  6. jim_thompson5910
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    (f o g)(2) = f(g(2)) (f o g)(2) = f(6) (f o g)(2) = ???

    • one year ago
  7. jim_thompson5910
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    so how do you find f(6)?

    • one year ago
  8. Katieann16
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    f=3?

    • one year ago
  9. jim_thompson5910
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    f(x)= 3/x f(6)= 3/6 f(6) = ???

    • one year ago
  10. Katieann16
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    ?

    • one year ago
  11. jim_thompson5910
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    reduce 3/6

    • one year ago
  12. jim_thompson5910
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    what do you get?

    • one year ago
  13. Katieann16
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    1/2

    • one year ago
  14. jim_thompson5910
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    so is (fog)(2)=2 true?

    • one year ago
  15. Katieann16
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    yes

    • one year ago
  16. jim_thompson5910
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    but we just found that f(6) = 1/2 which pointed to the fact that (f o g)(2) = 1/2

    • one year ago
  17. Katieann16
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    but that isnt a choice on the answers?

    • one year ago
  18. jim_thompson5910
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    so that rules out choice A

    • one year ago
  19. Katieann16
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    so its B?

    • one year ago
  20. jim_thompson5910
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    what is f(0)

    • one year ago
  21. jim_thompson5910
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    f(x) = 3/x f(0) = 3/0 is that possible?

    • one year ago
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