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boomzoom

Let f(x) = x + 8 and g(x) = x2 - 6x - 7. Find f(g(2)).

  • one year ago
  • one year ago

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  1. lgbasallote
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    first what is g(2)?

    • one year ago
  2. boomzoom
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    ???

    • one year ago
  3. lgbasallote
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    what do you mean "????"

    • one year ago
  4. boomzoom
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    your question said what is g(2) that how the poblem was given

    • one year ago
  5. Coda
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    First you must find g(2) by putting into the equation for g(2). Then you would take the step as to put what g(2) = into the f(x) equation.

    • one year ago
  6. Coda
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    By putting 2 into the equation for g, excuse me. Its a multi-step equation.

    • one year ago
  7. Wired
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    When you see g(2), that means solve g(x) where x = 2. \[\Large g(x) = x^{2}-6x-7\] \[\Large g(2) = 2^{2}-(6*2)-7= ?\]

    • one year ago
  8. lgbasallote
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    f(g(2) ) means you find g(2) then substitute that to x in f(g(2) )

    • one year ago
  9. boomzoom
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    oh ok

    • one year ago
  10. Wired
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    Note: Alternatively you could solve it all at once (but that may confusing right off the bat): \[\Large f(g(2)) = (x^{2}-6x-7)+8 = x^{2}-6x+1\]

    • one year ago
  11. Wired
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    What did you get for g(2)?

    • one year ago
  12. boomzoom
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    -15

    • one year ago
  13. Wired
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    Correct. Since g(2)=-15, that means f(g(2)) = f(-15). \[\Large f(x) = x+8\] \[\Large f(-15) = -15+8 = ?\]

    • one year ago
  14. timo86m
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    Let f(x) = x + 8 and g(x) = x2 - 6x - 7. Find f(g(2)). first find g(2) then once you find that plug that to f(x)

    • one year ago
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