Adblock breaks this site

Free homework help here

Discussion in 'Archives' started by MatthewGor123, Oct 25, 2008.

  1. Water Drips

    Water Drips Apprentice
    Banned

    Joined:
    Sep 5, 2008
    Posts:
    878
    Referrals:
    0
    Sythe Gold:
    0
    Free homework help here

    I need help with comparing and contrasting, 10 things i hate about you, to William Shakespeare taming of the shrew

    Patrick/Petruccio

    Bianca

    Cameron/Hortensio
     
  2. Memos

    Memos Forum Addict

    Joined:
    Aug 9, 2008
    Posts:
    405
    Referrals:
    0
    Sythe Gold:
    0
    Free homework help here

    10 Things the show on TV?
    Poetic prose vs. cliched writings?
     
  3. Range Me

    Range Me Guru
    Banned

    Joined:
    Oct 23, 2008
    Posts:
    1,924
    Referrals:
    1
    Sythe Gold:
    0
    Free homework help here

    ..JUST WANTED TO POST THIS..

    after matt's help I got a 93 on my college algebra II

    tyvm =] ill prob take a picture with my phone and post it heh
     
  4. MatthewGor123

    MatthewGor123 Guru
    Do Not Trade

    Joined:
    Dec 17, 2005
    Posts:
    1,213
    Referrals:
    0
    Sythe Gold:
    0
    Free homework help here

    xDxD :) Glad we could help! :cool: If you ever need any more help, don't hesitate to ask. It's what we're here to do ^_^
     
  5. Flameset

    Flameset Forum Addict

    Joined:
    Feb 19, 2008
    Posts:
    563
    Referrals:
    0
    Sythe Gold:
    0
    Free homework help here

    I need some help quick.

    Basically I have found a lot of stuff on how to graph a polynomial equation but,
    how do I find the formula of polynomial on a graph?

    Basically I have a graph of a polynomial and I have to find the formula. How would I do this?
     
  6. MatthewGor123

    MatthewGor123 Guru
    Do Not Trade

    Joined:
    Dec 17, 2005
    Posts:
    1,213
    Referrals:
    0
    Sythe Gold:
    0
    Free homework help here

    Hmm, if you could edit this post and post a picture of the graph itself, and how many degrees the polynomial must have, I think I could help you. If not, somebody else definitely could - but a bit more information would be nice to have.
     
  7. Flameset

    Flameset Forum Addict

    Joined:
    Feb 19, 2008
    Posts:
    563
    Referrals:
    0
    Sythe Gold:
    0
    Free homework help here

    Sorry its blury. The numbers on the x axis are -1, 3, 4 and the number on the y axis is 3.

    [​IMG]
     
  8. ivirz

    ivirz Member

    Joined:
    Nov 7, 2008
    Posts:
    73
    Referrals:
    0
    Sythe Gold:
    0
    Free homework help here

    To find the solution to this problem, we must first use what we know about graphs of functions. When you try to solve for the roots of a function (the points on x where y is equal to zero, also called the x intercepts) you first try to break the formula down in pieces. For example, if you wanted to know the roots of f(x) = x^2+4x+3, you would factor it to f(x) = (x+1)(x+3), and you would know the roots/x intercepts would be -1 and -3.

    In this question, the roots are already given, at -1, 3, and 4. So we just throw them into an equation really fast:

    f(x)=(x+1)(x-3)(x-4)

    and then we can expand it:

    f(x)=(x^2-2x-3)(x-4)

    f(x)=x^3 - 6x^2 + 5x + 12

    Great! we have our formula. But wait, when we graph it, its gets all wonky, like its stretched out, and doesnt have the right y intercept. Well, we have to modify the formula now, with a vertical stretch. This just means we will multiply the entire formula by a certain number.

    So, we know that we want the y intercept to be at 3. (Recall, the y intercept occurs when x=0) Right now, when we plug the x=0 into our equation, we end up with:

    f(x)=(0)^3 - 6(0)^2 + 5(0) + 12

    f(x)=12

    Well, thats not right. We want it to be 3. So this is where we do our vertical stretch. We want 12 to be three, so we will have to multiply it by 0.25. !BUT! we need to make sure we do this to the entire equation.

    So, our answer looks like:

    f(x)=0.25[x^3 - 6x^2 + 5x + 12]

    And we can expand it:

    f(x)=0.25x^3 - 1.5x^2 + 1.25x + 3

    And thats your answer. I dont know how well I explained, didnt use much mathimatical jargon. Hope it helps!
     
  9. MatthewGor123

    MatthewGor123 Guru
    Do Not Trade

    Joined:
    Dec 17, 2005
    Posts:
    1,213
    Referrals:
    0
    Sythe Gold:
    0
    Free homework help here

    You got on it before I got a chance to look at the thread ^_^. +1.

    If you need any more help with this explanation, feel free to PM me, but he definitely did a pretty great job.
     
  10. ivirz

    ivirz Member

    Joined:
    Nov 7, 2008
    Posts:
    73
    Referrals:
    0
    Sythe Gold:
    0
    Free homework help here

    No problem. Just trying to help.
     
  11. Ganzta-Freak

    Ganzta-Freak Grand Master
    $5 USD Donor

    Joined:
    May 18, 2007
    Posts:
    2,307
    Referrals:
    0
    Sythe Gold:
    0
    Free homework help here

    Simple math problem.
    We didn't really learn it yet, so if I could learn how to do this from one of you guys, that would be AWESOME. :)

    3y + 2 - y + 1 = _________

    3x - (2y + 2x) = _________
     
  12. The Fat Controller

    The Fat Controller Guru

    Joined:
    Aug 16, 2007
    Posts:
    1,003
    Referrals:
    0
    Sythe Gold:
    1
    Free homework help here

    You haven't explained what you want solving, so that doesn't make much sense to me.
     
  13. Shin

    Shin Join the Sythe.org Discord
    Retired Administrator Legendary Mudkips $100 USD Donor

    Joined:
    Mar 10, 2007
    Posts:
    14,172
    Referrals:
    23
    Sythe Gold:
    198
    Discord Unique ID:
    777373911821713408
    Pool Shark (4) Village Drunk <3 n4n0 (29) Sythe's 20th Anniversary Battleship Champion
    Free homework help here

    First one:

    Compress:

    2y + 3 = ____
    3 = 2y
    y = 2/3

    Second:

    3x - 2y - 2x = ______

    Compress

    x - 2y = _____
    -2y = x
    y = -x/2


    If that's what you were looking for.
    -I think you were solving for Y.
     
  14. ET Phone Home

    ET Phone Home Apprentice

    Joined:
    Sep 8, 2008
    Posts:
    663
    Referrals:
    1
    Sythe Gold:
    0
    Free homework help here

    I'm not sure what he was looking for either, but if "____" was supposed to be equal to zero, I think you got it right...

    but i think you might have messed up a teensy bit unbanned

    edit:

    haha, noticed this on page 5
    Sorry, but you were all wrong:
    1 + 3 - 2 + 7 x 36 - 10 + 102 x 6
    1 + 3 - 2 + (252) - 10 + (612)
    4 - 2 + 252 - 10 + 612
    2 + 252 - 10 + 612
    254 - 10 + 612
    244 + 612
    856
    lolowned
     
  15. MatthewGor123

    MatthewGor123 Guru
    Do Not Trade

    Joined:
    Dec 17, 2005
    Posts:
    1,213
    Referrals:
    0
    Sythe Gold:
    0
    Free homework help here

    No, he got it all right...A for effort, though.



    Congrats, you got a C-level Arithmetic problem right. Good thing the person who posted this wasn't spamming or anything.
     
  16. alexderby

    alexderby Member

    Joined:
    Aug 31, 2008
    Posts:
    70
    Referrals:
    0
    Sythe Gold:
    0
    Free homework help here

    Hi This isnt a math's question but im 13 in year 8 (english second school)
    Top Set for maths does any1 know any usee full websites cuz i been slakin off a lil and i wnna catch up faaast.
    If you do cud u pm me the website also ty vm
     
  17. Ganzta-Freak

    Ganzta-Freak Grand Master
    $5 USD Donor

    Joined:
    May 18, 2007
    Posts:
    2,307
    Referrals:
    0
    Sythe Gold:
    0
    Free homework help here

    It's not finding the Y.
    It's like this:

    Reduce:

    3y + 2 - y + 1 =

    3x - (2y + 2x) =


    Got until tomorrow with this one. Oshyt. :)

    Also, if anybody could help me on this one:

    For 100 Canadian Dollars you get 521 Danish Kroner.

    - With 2605 Danish Kroner you get
    ______ Canadian Dollars.

    - Thanks guys. Need help on these as fast as possible.
     
  18. The Fat Controller

    The Fat Controller Guru

    Joined:
    Aug 16, 2007
    Posts:
    1,003
    Referrals:
    0
    Sythe Gold:
    1
    Free homework help here

    3y + 2 - y + 1 =??????

    3x - (2y + 2x) =??????

    You can't have an equation which has an "=" sign and nothing on the right hand side. It has to be either 0 or something else.

    Ratio of Canadian Dollars to Danish Kroner is 100:521.
    Divide that by 100, you get the same ratio --> 1:5.21
    Divide both sides by 5.21 gives you --> 1/5.21:1
    This tells us you get 1/5.21 Canadian Dollars for 1 Danish Kroner.
    So with 2605 Danish Kroner you get (1/5.21)*2605 Canadian Dollars.

    2605*(1/5.21) = 500 Canadian Dollars exactly.
     
  19. Ganzta-Freak

    Ganzta-Freak Grand Master
    $5 USD Donor

    Joined:
    May 18, 2007
    Posts:
    2,307
    Referrals:
    0
    Sythe Gold:
    0
    Free homework help here

    Thanks, got the canadian dollars part.
    Why didn't I think of that from the start? :p

    - I think I'll have to guess on the other ones, since the only information I get is:

    Reduce:

    3y + 2 - y + 1 = 3y+3 ?

    3x - (2y + 2x) = No clue.
     
  20. MatthewGor123

    MatthewGor123 Guru
    Do Not Trade

    Joined:
    Dec 17, 2005
    Posts:
    1,213
    Referrals:
    0
    Sythe Gold:
    0
    Free homework help here

    3y + 2 - y + 1 = (3y - y) + (2 + 1) = 2y + 3

    3x - (2y + 2x) = 3x - 2y - 2x = (3x - 2x) - 2y = x - 2y

    Remember, in algebra you can only add parts that are "like terms" -- for example;
    if you had
    3(x^2) + 2x + 3 - 2(x^2) - 5, you would add all of the x^2 components, then all the x components, than all the x^0 (1) components. So, you would get 5(x^2), 2x, and -2. So, your final outcome would be 5x^2 + 2x - 2. If you have any further questions, don't hesitate to ask.

    Sorry, I don't think you made your question too clear at first.
     
< A lil thanks from me. | Darkgroove Imposter. >


 
 
Adblock breaks this site