A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

f(x) = 4x - 7, g(x) = 6x + 8 ... find (fg)(x) (my answer is 24x^2-10x-56 ... does this look right?)

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

    yes

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

    Actually, not quite, f(g(x))=4(6x+8)-7=24x+32-7=24x+25

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

    or were you looking for f(x)*g(x)?

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

    the problem is written as find (fg)(x)

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

    That usually means f(g(x)), but notation does sometimes vary..

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

    no it doesnt

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

    f(g(x)) is written like that, f(g(x))

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

    or I have seen (f o g) (x)

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

    Actually, you will find that I am right, I am a statistics and economics major at UC Berkeley. Check this article to verify: http://www.ehow.com/how_5203413_fgx.html :)

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

    wrong noob cake (fg)(x) is the product of two functions notation , you idiot

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

    and fg (X) would never be written as multiplication would it?

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

    :| the stupidity and you are meant to be smart

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

    I know, why don't you troll a bit and throw insults at people randomly because they can't see you or reply to your face. People show no respect on the internet.. we are both trying to help someone, can't you see that and put petty insults aside? I think the notation is unclear: here is another topic where people are discussing the same issue: http://www.physicsforums.com/showthread.php?t=237718

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

    @techcrew: I would ask your teacher, and maybe put both answers :)

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

    there is a difference between fg(x) and (fg)(x) , god, are u blind ? mr stats major, do you know what brackets mean?

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

    jesus, math students are so stupid

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

    the answers all are polynomials...it is multiple choice. they are all squared so i think it would be fx*gx

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

    well that simplifies it.

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

    lols man , confirmed my theory, math students are completely useless :P . Seriously some of guys lack common sense, you can do all your pure maths which has no applications to society but you cant even apply common sense lol

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

    whoa, you got a math degree, big deal , I am second year engineering student ( probably done like 1/10 of the amount of maths you have ) and I have more common snese than you

  21. 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.