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Andrewisbadatmath Group Title

Consider the functions f(x) = 2(x − 9) and g(x) = 4x. What is the value of (f − g)(5)? 12 28 20 −28

  • one year ago
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  1. ZeHanz Group Title
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    Just remember: (f-g)(5)=f(5)-g(5)

    • one year ago
  2. Andrewisbadatmath Group Title
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    So what do i plug in?

    • one year ago
  3. ZeHanz Group Title
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    Plug in 5 in both of the functions and subtract the outcomes.

    • one year ago
  4. Andrewisbadatmath Group Title
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    so, f(5) = 2(5-9) and g(5)=4 times 5?

    • one year ago
  5. Andrewisbadatmath Group Title
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    now i am confused

    • one year ago
  6. dpaInc Group Title
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    simplify f(5) = ??? g(5) = ???

    • one year ago
  7. dpaInc Group Title
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    you got it right earlier... just need to simplify....

    • one year ago
  8. Andrewisbadatmath Group Title
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    ohhh...

    • one year ago
  9. ZeHanz Group Title
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    @Andrewisbadatmath: right, and if you've found f(5) and g(5), you calculate their difference: f(5) - g(5)

    • one year ago
  10. Andrewisbadatmath Group Title
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    ok thank you

    • one year ago
  11. ZeHanz Group Title
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    YW!

    • one year ago
  12. Andrewisbadatmath Group Title
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    so it is -12?

    • one year ago
  13. Andrewisbadatmath Group Title
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    no i meant 12

    • one year ago
  14. ZeHanz Group Title
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    f(5) = 2(5-9) = 2*(-4)=... g(5) = 4*5 = ... f(5) - g(5) = ... (not 12)

    • one year ago
  15. ZeHanz Group Title
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    You will get -8 - 20 = ...

    • one year ago
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