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rebecca1233

  • 3 years ago

What is the value of f[g(3)] for the functions f(x) = x + 2 and g(x) = 5x - 1? (Type only the value of your final answer, no variables.) Numerical Answers Expected!

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  1. febylailani
    • 3 years ago
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    f(g(3)) first, find g(3) . after that, put the result tumber on the formula. like this >> f(result g(3)) do u understand?

  2. rebecca1233
    • 3 years ago
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    not really.. can u help me work through this

  3. febylailani
    • 3 years ago
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    ok.. first.. find g(3) with this formula g(x) = 5x - 1

  4. rebecca1233
    • 3 years ago
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    soo what do i do now..

  5. febylailani
    • 3 years ago
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    find the result of g(3) just subtitute the x on this formula >> g(x) = 5x - 1 with 3. what is the result u got?

  6. rebecca1233
    • 3 years ago
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    so substitute with x with 3

  7. febylailani
    • 3 years ago
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    yup.

  8. rebecca1233
    • 3 years ago
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    g(3) = 5(3) - 1

  9. febylailani
    • 3 years ago
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    yup..

  10. rebecca1233
    • 3 years ago
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    so 14 is the answer ?

  11. febylailani
    • 3 years ago
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    it's the answer for g(3). now.. subtitute x with 14 to this formula f(x) = x + 2

  12. rebecca1233
    • 3 years ago
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    14+2 = 16

  13. rebecca1233
    • 3 years ago
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    so what now

  14. febylailani
    • 3 years ago
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    it's the final result

  15. rebecca1233
    • 3 years ago
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    so 16 is the answer not 14

  16. rebecca1233
    • 3 years ago
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    can u please help me with a different question

  17. rebecca1233
    • 3 years ago
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    http://openstudy.com/study#/updates/5060f00fe4b0583d5cd2892c

  18. febylailani
    • 3 years ago
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    f[g(3)] is f(g(3)) = g(3) + 2 1) to solve that first we must find g(3). g(3) = 5(3) - 1 g(3) = 15 - 1 = 14 2) after that, we can find f(g(3)). f(g(3)) = g(3) + 2 f(14) = 14 +2 f(14) = 16 do u understand?

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