A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

If g(x) = 6 + x + e^x, find g^-1of (7).

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

    try x=0 see if \[g(0)=7\] then you will have your answer

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

    you really have to guess this one. no computing it using algebra

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

    ln(x-6)/2 gives me 0/2 or zero is this right

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

    Plug g(x)=7, and solve for x.

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

    that is not the inverse. you would have to solve \[x=6+y+e^y\] for y. good luck!

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

    yes but for this one you have to guess. you check that \[g(0)=6+0+e^0=6+1=7\] so \[g^{-1}(7)=0\]

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

    don't try to find \[g^{-1}(x)\] using algebra

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

    hello anwar. seen quite a spate of wrong answers here tonight

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

    not from you of course

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

    Yeah, Plugging \(7\) for g(x) gives: \(x+e^x=1\), then \(x=0\) is the only solution. Hence \(g^{-1}(7)=0\).

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

    thanks

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

    exactly but you solved the last one by inspection yes?

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

    Yes! But, it's not hard to see it. It can be easily solved by graphing as well.

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

    And hello satellite :)

  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

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.