Hey there! Sign in to join this conversationNew here? Join for free
    Offline

    0
    ReputationRep:
    (Original post by a10)
    yup k is -5
    Thank you kind sir
    Offline

    0
    ReputationRep:
    (Original post by jt663)
    What did people get for the length PQ? on y=4 on the x^2 graph? I got 11/2, I heard it might be 9/2 though
    I got 9/2 , but I can't say for certain that i am right.
    Offline

    0
    ReputationRep:
    (Original post by a10)
    wat wer the coordinates of B for 6ii


    (I got -2,-10) I think cant remember if both wer negative...
    this was my answer as well, through a very awkward working out procedure i might add
    Offline

    14
    ReputationRep:
    (Original post by a10)
    wat wer the coordinates of B for 6ii


    (I got -2,-10) I think cant remember if both wer negative...
    I got that too.
    Offline

    0
    ReputationRep:
    What did you all get for the minimum value? for 3(x+1.5)^2+3.25 ???
    Offline

    1
    ReputationRep:
    Hi guys,
    I accidentally put k=5 for 10i even though I did the right workings (can't add up). I also then used this for part iii with the tangent 9x-9 but It wouldn't factories as I got the wrong quadratic. How many marks will I lose?
    thanks
    Offline

    0
    ReputationRep:
    (Original post by StephHowarth)
    I got 9/2 , but I can't say for certain that i am right.
    I got 9/2.
    Offline

    0
    ReputationRep:
    What did you all get for the minimum value? for 3(x+1.5)^2+3.25 ???
    Offline

    3
    ReputationRep:
    A lot of my smart friends got K=-5

    I lost at least 12 marks. and say 3 marks for mistakes

    if i lost 15 marks what grade would that be?

    I had trouble with 10ii and 9iii and the K = question
    Offline

    0
    ReputationRep:
    (Original post by styles4777)
    What did you all get for the minimum value? for 3(x+1.5)^2+3.25 ???
    (-3/2, 13/4), something like that.

    Got a horrible feeling right now, I did -18-9= -9 for some reason, if i did that for the last question and then put (-2, -9) as co-ordinates how many marks will i lose?
    Posted from TSR Mobile
    Offline

    0
    ReputationRep:
    douse any one have the paper or is any one working on an unofficial mark scheme i would really like to know what i got ruffly.
    Offline

    0
    ReputationRep:
    (Original post by eggfriedrice)
    Remind me what was question two and I might remember my answer.
    It was to solve a quadratic, with x^6 + x^3 + (..) or something and a typical method would be to substitute a = x^3 or something, and rewrite it as a^2 + b + c

    I got x = + - 1/2

    and my other x value was cuberoot of -1 ? But i mistook that for a square root though X(
    Offline

    16
    ReputationRep:
    (Original post by styles4777)
    What did you all get for the minimum value? for 3(x+1.5)^2+3.25 ???
    -3/2,13/4


    Posted from TSR Mobile
    Offline

    19
    ReputationRep:
    (Original post by eggfriedrice)
    I got that too.
    today is getting better xD so far I reckon iv got 100ums if im lucky with the grade boundaries.

    wat did u get for the question that said wat values of x is the curve decreasing?
    Offline

    0
    ReputationRep:
    3 - 8x > 4

    x should be less than -1/8, e.g. if you choose -1/10 as x.

    3+ (8/10) > 4 which is not true, therefor x must less than -1/4
    Offline

    16
    ReputationRep:
    (Original post by StickySteve)
    It was to solve a quadratic, with x^6 + x^3 + (..) or something and a typical method would be to substitute a = x^3 or something, and rewrite it as a^2 + b + c

    I got x = + - 1/2

    and my other x value was cuberoot of -1 ? But i mistook that for a square root though X(
    It's only +1/2


    Posted from TSR Mobile
    Offline

    0
    ReputationRep:
    (Original post by eggfriedrice)
    No :s last year was 61 for an A I think.




    Aha, I did that and realised root a square would just cancel out. Hmm I'm not sure, at most you'll lose one mark.
    FUUUUUU. So annoyed with myself, i reckon i've got around 60/72, will that be enough for an A?

    Posted from TSR Mobile
    Offline

    2
    ReputationRep:
    For the decreasing function, -3/2<x<1?
    Offline

    0
    ReputationRep:
    (Original post by a10)
    wat wer the coordinates of B for 6ii


    (I got -2,-10) I think cant remember if both wer negative...
    I got that!
    Offline

    0
    ReputationRep:
    Question 10iii) For the coordinates of A, I set the line equal to the curve, and then equated it to 0, then solved it using the remainder theorem, to obtain a quadratic, solved the quadratic and got X to be -2, subbed X value into the curve and got Y to be -27. So the point = (-2,-27) Would I get 5/5 marks for this method?
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Would you rather give up salt or pepper?
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Write a reply...
    Reply
    Hide
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.