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    (Original post by razzmataz1478)
    Yes and yes.
    yes and yes for me too
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    (Original post by Heffalump .)
    I got 162/5 for the integration question
    what did everyone get for the translated curve? I got x^2-x+4..?
    cant remember the answer but u did y=(x-2)^2+3(x-2)+2+6 something like that expanded it out to look something like x^2 -4x +16 + 3x +6 +8
    btw i cant remember it if was minus 3(x-2) or plus 3(x-2)
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    (Original post by JNicko)
    I got 7 - rt15, and yeah I got (-4,9)
    Got 7 + rt15 but (9,-4)
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    Question 2 (Surd Question)


    Ended up with 7 + root 15 (could of possibly been 7 - root 15, but pretty sure it was a positive)
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    (Original post by newguy456)
    how about the polynomial question?
    1.Sketch the graph x^2(x-3)+20
    2.the remainer when x-4(divide)
    3.Put it into (x+3)(x^2+bx+c)
    4 P(x)=0 Find the root and give the value
    for the remainder when its x-4 I think i got 36? For (x+2)(x^2+bx+c) i got b something like (x+2)(x^2+5x...) can't remember something along those lines
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    What I don't get is that it said the shorest route to the cord and the longest length had to be 5root2 however people get 7
    ?!?!
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    (Original post by MHenton11)
    Question 2 (Surd Question)


    Ended up with 7 + root 15 (could of possibly been 7 - root 15, but pretty sure it was a positive)
    I think it was a plus, but there was definitely a 7
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    what was the answer to the very first question?
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    (Original post by tanyapotter)
    what was the answer to the very first question?
    -3/5
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    wrong
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    (Original post by brokenlevel23)
    I think it was a plus, but there was definitely a 7
    Yeah more I think about it i'm pretty sure it was positive
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    (Original post by harrybo6)
    lifes a *****, u think we will get like working out marks? beauce the only thing wrong was putting the 2 and the 5 the wrong way round
    Was it three marks? We should get get 2 I think
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    (Original post by JNicko)
    -3/5
    THANK GOD OMG
    why are some people saying the gradient was -5/3?! im panicking so much
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    These are the answers I remember:
    q1: -3/5 for gradient
    AB: -5x+3y-1=0
    (9,-4)

    q2: 7+ root15

    q3: circle: (x+1)^2 + (y-3)^2 =50
    C(-1,3)
    radius: root 50, which is 5 root 2
    k=8 k=-2 or something like that, I think i've remembered that wrong, so correct that
    minimum length: 7

    q4: dy/dx: 4x^3 - 6x or something..
    the line was something like y=-10x-4
    intergration: 108/5
    final answer: (54-108/5) 162/5

    q5: polynomials sketch curve
    remainder: 36
    proof p(x)=0
    (x+2)((x^2-5x+10)
    x^2-5x+10 has no roots (b^2-4ac < 0) so x=-2 is the only root

    q6: cylinder
    h=(48pi - pir^2)/2pir
    prove v= that equation thing by substituting h in
    dy/dx= 24pi-3pir^2/2
    r=4
    d^2y/dx^2=6pir
    so -12pi therefore maximum

    q7: (x+(3/2))^2 - 1/4
    Vertex: (-3/2, -1/4)
    Los: x=-3/2
    translated curve: x^2-x+4

    q8: rearrange to get that equation
    use b^2-4ac<0 to get the second equation
    -4/9<k<4
    thats most of it, my memory failed at some parts so correct me if I'm wrong..
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    I wrote down all the answers except for the "show that" ones on my Candinate Number slip
    Had very little room, so can't say which answer is which sub-question, only the numbered question.

    1. Gradient = -3/5
    Equation of perpendicular line: 5x-3y+1=0
    Coordinate of A =(9,-4)

    2. Gradient = 7+rt15

    3. Tangent at A : y= -10x-4
    Area under graph : 108/5
    Shaded area: 270/5-108/5 = 162/5

    4. Equation of circle : (x+1)^2 + (y-3)^2 =50
    Centre = (-1,3)
    Radius = rt50
    K = (-2,8)
    Shortest distance (C to QR) = 7

    5. After completing the square : (x+3/2)^2 -1/4
    Vertex = (-3/2, -1/4)
    Line of symmetry: x=-3/2
    Translated graph : y=x^2 -x+4

    6. h= 24/r - r/2
    dV/dt = 24pi -3pir^2/2
    r=4 d*2V/dt^2 = -12pi
    So a maximum value.

    7. r=36
    Factorised : (x+2)(x^2-5x+10)
    Only root: x=-2

    8. -9/4<k<4
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    (Original post by Pandameglanda)
    I got all these too 👍
    I swear it was -3/5 for gradient!!!
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    (Original post by tanyapotter)
    THANK GOD OMG
    why are some people saying the gradient was -5/3?! im panicking so much
    It was 5y + 3x = c

    So pretty sure the grad would be -3/5
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    (Original post by JNicko)
    It was 5y + 3x = c

    So pretty sure the grad would be -3/5
    thank you so much!!! i'm relieved
    that paper didn't go as badly as i nearly thought then
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    omg i missed out question eight because i thought there wa sonly 7 questions as there usually is. i feel really bad gonna have to retake the year now. can i please have some sympathy comments to make me feel better x
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    (Original post by Anam)
    I swear it was -3/5 for gradient!!!
    Yeah it was, did I say it wasn't? 😂
 
 
 
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