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Mr M’s Edexcel GCSE Mathematics A Higher Linear Paper 1 Answers June 2012

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    Mr M’s Edexcel GCSE Mathematics A Higher Linear Paper 1 Answers June 2011


    1. Questionnaire

    a) Suitable table (2 marks)

    b) Sample too small OR not representative (1 mark)


    2. Paving slabs

    a) Yes (he needs 30 slabs) (3 marks)

    b) £276.16 (3 marks)


    3. Parcels

    a) £10 (1 mark)

    b) Ed is cheaper than Bill for distances under 20 miles and more expensive for distances over 20 miles. The cost is the same for a distance of 20 miles. (3 marks)


    4. Stem and leaf diagram

    2 | 9
    3 | 1 3 5 6 9
    4 | 2 3 3 4 6 8 9
    5 | 2 4 5

    Key: 2 | 9 = 29 mph (3 marks)


    5. Medicine

    8 (2 marks)


    6. Shortcakes

    a) 30 (2 marks)

    b) 60 (2 marks)


    7. Buses

    11.00 a.m. (3 marks)


    8. Algebra

    a) 6y-15 (1 mark)

    b) 4x(2x+y) (2 marks)

    c) h=\frac{10t}{g} (2 marks)


    9. Rotation

    Rotation 180 degrees about (3, 3) (3 marks)


    10. Train tickets

    Railtickets (65p cheaper) (4 marks)


    11. Parallelogram

    39 (3 marks)


    12. Orange juice

    4 (3 marks)


    13. Hexagon and octagon

    105 degrees (4 marks)


    14. Lighthouse and harbour

    a) 35 km (1 mark)

    b) 110 degrees (1 mark)

    c) Position marked 4 cm away on correct bearing (2 marks)


    15. Cumulative frequency

    a) 170 g (1 mark)

    b) Correct box plot (3 marks)

    c) Median of group A is higher than that of group B and interquartile range of A is bigger than B or other correct comparisons (2 marks)


    16. More algebra

    a) m^{-10} (1 mark)

    b) (x+5)(x-2) (2 marks)


    17. Standard form

    a) 1 (1 mark)

    b) 0.000067 (1 mark)

    c) 2.7 \times 10^{14} (2 marks)


    18. Area of enlarged shape

    1.5 (3 marks)


    19. Probability tree diagram

    a) Missing numbers: 0.6, 0.7, 0.3, 0.7 (2 marks)

    b) 0.12 (2 marks)


    20. Simultaneous equations

    x = 3 and y = -2 (4 marks)


    21. Circle theorems

    Radius and tangent are perpendicular so angles OBA and ODA are 90 degrees

    Angles in a quadrilateral sum to 360 degrees so angles DOB = 130 degrees

    Angle BCD = 65 degrees as angle at circumference is half the angle at the centre of the circle (4 marks)


    22. Histogram

    a) Correct bars (frequency densities 3, 5, 3.6, 1.2) (3 marks)

    b) 18 (2 marks)


    23. Algebraic fractions

    a) \frac{x+4}{2x-3} (3 marks)

    b) \frac{7x-2}{x^2-4} (3 marks)


    24. Recurring decimal

    \frac{31}{110} (3 marks)


    25. Cylinder and sphere

    r = 3x (3 marks)


    26. Graph transformations

    a) Translation 3 units in the positive x direction (2 marks)

    b) Stretch scale factor 2 in the y direction (2 marks)
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    Are we allowed to know what the values in the question were in 23 a and b?
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    Would it be possible to upload the question paper?

    Im curious to see what the new spec is all about

    but thanks Mr M as always great job you do!

    Edit: negged for this? lol wtf is wrong with some people..
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    Got question 1 wrong! Didn't read the question properly and designed a question with suitable responses - doh. Didn't think designing a table was in the syllabus!
    Will I get any marks
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    (Original post by starpupil)
    Are we allowed to know what the values in the question were in 23 a and b?
    \frac{x^2+3x-4}{2x^2-5x+3}

    and

    \frac{4}{x+2}+\frac{3}{x-2}
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    (Original post by jLou711)
    Would it be possible to upload the question paper?

    Im curious to see what the new spec is all about

    but thanks Mr M as always great job you do!
    Edexcel only grant permission for us to use papers with our students in our own Centre so I can't do that. Sorry!
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    (Original post by hellsbells99)
    Got question 1 wrong! Didn't read the question properly and designed a question with suitable responses - doh. Didn't think designing a table was in the syllabus!
    Will I get any marks
    I'm not sure - probably not.
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    Mr M, would 60/200 be enough for a C?
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    (Original post by safwan15)
    Mr M, would 60/200 be enough for a C?
    You've asked this question several times on multiple threads and people have given you their answers. We have said It most likely is but nobody knows for certain as we don't magically know the grade boundaries.
    Please stop asking the same question over and over again..
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    anyone? 60/200 enough for a C?
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    (Original post by safwan15)
    Mr M, would 60/200 be enough for a C?
    Quite possibly but I couldn't be certain.
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    im curious! whats it to you?
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    ok thanks
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    (Original post by Mr M)
    Mr M’s Edexcel GCSE Mathematics A Higher Linear Paper 1 Answers June 2011


    1. Questionnaire

    a) Suitable table (2 marks)

    b) Sample too small OR not representative (1 mark)


    2. Paving slabs

    a) Yes (he needs 30 slabs) (3 marks)

    b) £276.16 (3 marks)


    3. Parcels

    a) £10 (1 mark)

    b) Ed is cheaper than Bill for distances under 20 miles and more expensive for distances over 20 miles. The cost is the same for a distance of 20 miles. (3 marks)


    4. Stem and leaf diagram

    2 | 9
    3 | 1 3 5 6 9
    4 | 2 3 3 4 6 8 9
    5 | 2 4 5

    Key: 2 | 9 = 29 mph (3 marks)


    5. Medicine

    8 (2 marks)


    6. Shortcakes

    a) 30 (2 marks)

    b) 60 (2 marks)


    7. Buses

    11.00 a.m. (3 marks)


    8. Algebra

    a) 6y-15 (1 mark)

    b) 4x(2x+y) (2 marks)

    c) h=\frac{10t}{g} (2 marks)


    9. Rotation

    Rotation 180 degrees about (3, 3) (3 marks)


    10. Train tickets

    Railtickets (65p cheaper) (4 marks)


    11. Parallelogram

    39 (3 marks)


    12. Orange juice

    4 (3 marks)


    13. Hexagon and octagon

    105 degrees (4 marks)


    14. Lighthouse and harbour

    a) 35 km (1 mark)

    b) 110 degrees (1 mark)

    c) Position marked 4 cm away on correct bearing (2 marks)


    15. Cumulative frequency

    a) 170 g (1 mark)

    b) Correct box plot (3 marks)

    c) Median of group A is higher than that of group B and interquartile range of A is bigger than B or other correct comparisons (2 marks)


    16. More algebra

    a) m^{-10} (1 mark)

    b) (x+5)(x-2) (2 marks)


    17. Standard form

    a) 1 (1 mark)

    b) 0.000067 (1 mark)

    c) 2.7 \times 10^{14} (2 marks)


    18. Area of enlarged shape

    1.5 (3 marks)


    19. Probability tree diagram

    a) Missing numbers: 0.6, 0.7, 0.3, 0.7 (2 marks)

    b) 0.12 (2 marks)


    20. Simultaneous equations

    x = 3 and y = -2 (4 marks)


    21. Circle theorems

    Radius and tangent are perpendicular so angles OBA and ODA are 90 degrees

    Angles in a quadrilateral sum to 360 degrees so angles DOB = 130 degrees

    Angle BCD = 65 degrees as angle at circumference is half the angle at the centre of the circle (4 marks)


    22. Histogram

    a) Correct bars (frequency densities 3, 5, 3.6, 1.2) (3 marks)

    b) 18 (2 marks)


    23. Algebraic fractions

    a) \frac{x+4}{2x-3} (3 marks)

    b) \frac{7x-2}{x^2-4} (3 marks)


    24. Recurring decimal

    \frac{31}{110} (3 marks)


    25. Cylinder and sphere

    r = 3x (3 marks)


    26. Graph transformations

    a) Translation 3 units in the positive x direction (2 marks)

    b) Stretch scale factor 2 in the y direction (2 marks)
    For 6a I stupidly put 32, but I think I did the working out right, do you know how many marks I will get?

    And for 11, I put 39.1.. I don't know why, and I think I did my working out right, how many for that?

    And thank you so much for these answers, you've really made me feel so much better!
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    (Original post by Lucy96)
    For 6a I stupidly put 32, but I think I did the working out right, do you know how many marks I will get?

    And for 11, I put 39.1.. I don't know why, and I think I did my working out right, how many for that?

    And thank you so much for these answers, you've really made me feel so much better!
    6a) 1 mark

    11) 2 marks

    This assumes your working out was right.
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    (Original post by Mr M)
    6a) 1 mark

    11) 2 marks

    This assumes your working out was right.
    Thank you very much
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    if anybody is there what would marks would i need to get an very high B or a low A.. overall, not seperately

    anyoneeeeeeeeeeeeeeeeeeeee...

    ps. how did u peepz find the exam. i found it hard.
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    For 23 (B) 4 over x+2 + 3/x-2 simplify am I the only one who got 7 over one by cancelling out everything ??
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    For the Orange juice carton where the answer is 4cm, is it that 8/20 is 40%, so 40% of 10cm would be 4cm high...?

    Feel as though I really did badly, but looking at this mark scheme I'm guessing something like 58 - 60/100... really need to do well tomorrow! x
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    Yeah I also want to know what it roughly could be out of 200 for an A, I think I probably got around 65 on this one.. which is a vast improvement for me haha

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