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burhan101

  • 3 years ago

Composition of Functions: f(x) {(3,2),(5,2),(7,4),(9,3),(11,5)} g(x) {(1,3),(2,5),(3,7),(4,9),(5,11)}

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  1. burhan101
    • 3 years ago
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    What is f(g(3)) ?

  2. burhan101
    • 3 years ago
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    @satellite73 @Hero

  3. Hero
    • 3 years ago
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    Which do you believe is the correct answer?

  4. burhan101
    • 3 years ago
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    no i have to compose it

  5. Hero
    • 3 years ago
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    I know what you have to do bro. I asked you a simple question to see, if perhaps, you have already attempted to solve it.

  6. Hero
    • 3 years ago
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    With these ordered pairs, the first number is the input, the second number is the output.

  7. burhan101
    • 3 years ago
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    No actuallly i don't remember the method, nor can i find it in my textbook : /

  8. Hero
    • 3 years ago
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    so what is the output of g(3)?

  9. burhan101
    • 3 years ago
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    is it 7?

  10. Hero
    • 3 years ago
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    Yes, that is correct. So, in other words g(3) = 7

  11. Hero
    • 3 years ago
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    So now you replace g(3) with 7: f(g(3)) = f(7) So what is the output of f(7) if x = 7 is the input?

  12. burhan101
    • 3 years ago
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    4 ?

  13. Hero
    • 3 years ago
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    Yup, it was that easy.

  14. burhan101
    • 3 years ago
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    ohh, so now do i have to continue this for each one

  15. Hero
    • 3 years ago
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    Good luck with it bro.

  16. burhan101
    • 3 years ago
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    @Hero (f-g)(x) how would i solve that ?

  17. Hero
    • 3 years ago
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    (f - g)(x) = f(x) - g(x)

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