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    (Original post by jt663)
    Was the radius of the circle 5? at the end
    yeah
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    I thought 1/3 parallel to x axis and most people did as well?
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    (Original post by zintanax)
    I got 40 square units
    -1/48
    stretch of 1/3 parallel to the y axis (can someone clarify on this please? not sure if right)
    k<-25/8
    Got k<-25/8 also.
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    im so annoyed, C1 is supposed to be easy and I made so many mistakes, did anyone get 5^9/2 for the part (iii) indices question?
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    I had k>25
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    (Original post by Parallex)
    looks like a stretch parallel to x scale factor 1/3 to me tbh

    Pretty sure it was in the x-direction. the function would have been y=f(3x)
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    (Original post by Oikai)
    im so annoyed, C1 is supposed to be easy and I made so many mistakes, did anyone get 5^9/2 for the part (iii) indices question?


    Posted from TSR Mobile

    Yh
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    (Original post by Parallex)
    looks like a stretch parallel to x scale factor 1/3 to me tbh

    It actually looks like both are correct
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    (Original post by Oikai)
    im so annoyed, C1 is supposed to be easy and I made so many mistakes, did anyone get 5^9/2 for the part (iii) indices question?
    Yep
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    (Original post by User10102929)
    It actually looks like both are correct

    me and my friend were saying this on the way home, could it actually be either?
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    I got stretch of 1/3 parallel to y axis because
    y = 1/x
    y/(1/3) = 1/x
    y= (1/x) * (1/3) = 1/3x which I think is what we wanted?
    y/c means stretch in y axis sf c
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    (Original post by Parallex)
    me and my friend were saying this on the way home, could it actually be either?


    Posted from TSR Mobile

    Both are correct
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    does anyone remember the question and mark split up???
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    (Original post by Magnesium)
    Pretty sure it was in the x-direction. the function would have been y=f(3x)
    Is a stretch of 1/3 in the y and a stretch of 3 the same?
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    (Original post by ella_chloe)
    i wrote 40 then crossed it out,
    will i get any method marks for working out the Q and R coordinates and writing area=.5x basex height ?
    (q out of 4)
    I imagine it'll be: 1 (or all) marks for right answer. Then 1 mark for correct Q and R, 1 mark for finding the correct lengths from your values and 1 mark for substituting in to 1/2bh.

    -1/2 marks for getting the wrong answer?
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    How many marks would be dropped if you got -1/48 instead of 1/48? Would that be 2/4?
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    (Original post by Parallex)
    looks like a stretch parallel to x scale factor 1/3 to me tbh

    See, that looks like y-direction to me - It goes closer to the x-axis...
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    can someone confirm if this is x or y or both acceptable please



    all x coordinates are 1/3 of f(x)
    all y coordinates are 1/3 of f(x)

    ??
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    (Original post by jt663)
    Is a stretch of 1/3 in the y and a stretch of 3 the same?
    You mean a stretch of 3 in the x axis?

    I don't think so because in one, the x values are not constant and in the other, they are?
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    (Original post by Oikai)
    im so annoyed, C1 is supposed to be easy and I made so many mistakes, did anyone get 5^9/2 for the part (iii) indices question?
    that's the problem with core 1. It's so easy so the grade boundaries are high but everyone makes silly mistakes. Last year I got 62/72 but that was only a B. If I you resit I recommend you go through the paper twice and substitute your answers into the eequation to make sure you're definitely correct
 
 
 
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