Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

boomzoom

  • 3 years ago

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

  • This Question is Closed
  1. lgbasallote
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    first what is g(2)?

  2. boomzoom
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ???

  3. lgbasallote
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what do you mean "????"

  4. boomzoom
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    your question said what is g(2) that how the poblem was given

  5. Coda
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    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.

  6. Coda
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    By putting 2 into the equation for g, excuse me. Its a multi-step equation.

  7. Wired
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

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

  8. lgbasallote
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    f(g(2) ) means you find g(2) then substitute that to x in f(g(2) )

  9. boomzoom
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh ok

  10. Wired
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

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

  11. Wired
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    What did you get for g(2)?

  12. boomzoom
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    -15

  13. Wired
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    Correct. Since g(2)=-15, that means f(g(2)) = f(-15). \[\Large f(x) = x+8\] \[\Large f(-15) = -15+8 = ?\]

  14. timo86m
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    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)

  15. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy