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anonymous

  • one year ago

Medal and fan Given the following functions f(x) and g(x), solve f[g(10)] and select the correct answer below: f(x) = 10x + 8 g(x) = x + 9 2,052 98 190 198

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  1. anonymous
    • one year ago
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    @iGreen

  2. anonymous
    • one year ago
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    @welshfella

  3. iGreen
    • one year ago
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    First, solve g(10)..which is just plugging in 10 for \(\sf x\).

  4. iGreen
    • one year ago
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    \(\sf g(x) = x + 9\) \(\sf g(10) = 10 + 9\)

  5. iGreen
    • one year ago
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    What do you get?

  6. anonymous
    • one year ago
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    -9 and 0??

  7. anonymous
    • one year ago
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    @iGreen

  8. iGreen
    • one year ago
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    -9?

  9. iGreen
    • one year ago
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    \(\sf 10 + 9 \ne -9~or~0\)

  10. anonymous
    • one year ago
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    idk, i'm confused on this

  11. iGreen
    • one year ago
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    You can't add \(\sf 10 + 9\)?

  12. anonymous
    • one year ago
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    it's 19, i thought there was more to it

  13. iGreen
    • one year ago
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    g(10) means we plug in 10 for 'x' in g(x) = x + 9.

  14. iGreen
    • one year ago
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    Which gives us: \(\sf g(10) = 10 + 9\) Simplify: \(\sf g(10) = 19\) You're correct..now we have: \(\sf f(19)\) Plug in \(\sf 19\) for 'x' in \(\sf f(x) = 10x + 8\) now.

  15. iGreen
    • one year ago
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    Understand?

  16. anonymous
    • one year ago
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    f(19) = 10(19) + 8? Or is it f(x) = 10x + 8

  17. anonymous
    • one year ago
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    f(19) = 10x + 8*

  18. anonymous
    • one year ago
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    Help

  19. iGreen
    • one year ago
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    f(19) = 10(19) + 8 is correct..

  20. iGreen
    • one year ago
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    \(\sf f(x) = 10x + 8\) \(\sf f(19) = 10(19) + 8\)

  21. iGreen
    • one year ago
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    Now simplify the right side

  22. anonymous
    • one year ago
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    198 is what i got

  23. iGreen
    • one year ago
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    That is correct.

  24. anonymous
    • one year ago
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    Thanks, could you help me with a few more :D?

  25. iGreen
    • one year ago
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    Sure, just close this and open a new one.

  26. anonymous
    • one year ago
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    Alright

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