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tacamry

  • 2 years ago

If f(x) = 1/2 x + 2 and g(x) = −3x − 1, find g[f(4)]. −19 11 −13 −11

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  1. KingGeorge
    • 2 years ago
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    If you're given something like g[f(x)], that means that you want to find f(x), and take that value, and plug into to g. For example: g[f(0)]: Since \(\displaystyle f(0)=\frac{1}{2}(0)+2=2 \) \( g[f(0)]=g(2)=-3(2)-1=-7\). Now can you do this with 4 instead of 0?

  2. tacamry
    • 2 years ago
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    so iht would be -11

  3. KingGeorge
    • 2 years ago
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    You're very close. You have f(4)=4 correct?

  4. tacamry
    • 2 years ago
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    i got it -13

  5. KingGeorge
    • 2 years ago
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    Bingo.

  6. tacamry
    • 2 years ago
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    thanx

  7. KingGeorge
    • 2 years ago
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    you're welcome.

  8. tacamry
    • 2 years ago
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    can yhu help with one other question to?

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