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anonymous

  • one year ago

Functions and inverses If ƒ(x ) = 3x + 1 and ƒ ^-1 = x-1/3 then ƒ(2) = 1/3 1 7

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  1. anonymous
    • one year ago
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    Any help would be great.

  2. freckles
    • one year ago
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    f(2) means you just replace the x's in the function named f above

  3. freckles
    • one year ago
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    you have f(x)=3x+1 you want to find f(2) replace the x's with 2

  4. anonymous
    • one year ago
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    7 or 1/3

  5. anonymous
    • one year ago
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    ?

  6. freckles
    • one year ago
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    well you are to find f(2) not f^(-1)(2)

  7. freckles
    • one year ago
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    so what do you think?

  8. anonymous
    • one year ago
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    So 7

  9. freckles
    • one year ago
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    yes

  10. anonymous
    • one year ago
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    3*2+1= 7

  11. anonymous
    • one year ago
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    Thanks.

  12. freckles
    • one year ago
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    np

  13. anonymous
    • one year ago
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    Can I check 1 more? If ƒ(x ) = 3x + 1 and ƒ ^-1 = x-1/3 then ƒ ^-1(7) = 22 2 -2

  14. anonymous
    • one year ago
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    7-1=6/3=2

  15. freckles
    • one year ago
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    is that really (x-1)/3 or is it x-1/3 judging by what f is I believe f^-1(x)=(x-1)/3 and if so f^-1(7)=(7-1)/3=6/3=2 is right

  16. anonymous
    • one year ago
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    x-1 is over 3

  17. anonymous
    • one year ago
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    or divided by 3

  18. anonymous
    • one year ago
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    which ever terminology you prefer

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