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***2015 LC Maths Paper 2 - Ordinary Level - June 8th***

  • 08-06-2015 10:54am
    #1
    Registered Users, Registered Users 2 Posts: 1,136 ✭✭✭


    Okay that was suspiciously easy.


«1

Comments

  • Registered Users Posts: 31 MuchZeus


    Post exam discussion for Leaving Cert Ordinary Level Maths Paper 2


  • Registered Users, Registered Users 2 Posts: 1,415 ✭✭✭ronan keane


    Brilliant exam couldn't be happier :D everything I hoped for came up and nothing too difficult! still annoyed that I'm more than likely not going to get my A because on Paper 1 :mad:


  • Registered Users, Registered Users 2 Posts: 1,139 ✭✭✭westernfrenzy


    Seemed nicer than P1. Probably got a lot wrong though


  • Registered Users Posts: 21 bmea


    What was the slope of P? I just had to make it up which would have lost me a few marks


  • Registered Users, Registered Users 2 Posts: 1,339 ✭✭✭Jijsaw


    Grand paper, now for Irish.


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  • Registered Users, Registered Users 2 Posts: 1,415 ✭✭✭ronan keane


    bmea wrote: »
    What was the slope of P? I just had to make it up which would have lost me a few marks

    I believe it was -1, it told you they were both equally spaced or whatever so I just gave it the points (5,0) and (0,5) then used the slope formula


  • Registered Users Posts: 34 Jamies15


    bmea wrote: »
    What was the slope of P? I just had to make it up which would have lost me a few marks

    1 I think?


  • Closed Accounts Posts: 621 ✭✭✭if832uspx4eogt


    What was slope of P?


  • Registered Users Posts: 34 Jamies15


    I believe it was -1, it told you they were both equally spaced or whatever so I just gave it the points (5,0) and (0,5) then used the slope formula

    Upward sloping from left to right so would it not be positive?


  • Registered Users Posts: 21 bmea


    Ya it would have been positive


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  • Registered Users, Registered Users 2 Posts: 1,415 ✭✭✭ronan keane


    Jamies15 wrote: »
    Upward sloping from left to right so would it not be positive?

    I was thinking that myself but i got -1 when i worked it out :confused: probably made a small mistake :P


  • Registered Users, Registered Users 2 Posts: 1,136 ✭✭✭Anonymagician


    What was slope of P?

    It was 1. It was split equally. Perpendicular slope was -1.


  • Registered Users Posts: 65 ✭✭blobcat


    Was not too bad.. hopefully pass- worthy. Only thing was I don't remember ever doing enlargements.. threw in some numbers and drew a triangle.. praying for some attempt marks there


  • Closed Accounts Posts: 621 ✭✭✭if832uspx4eogt


    I thought the enlargement question was lovely, if I did it right.


  • Registered Users Posts: 4 matii10


    Same here. Never done enlargements and just guessed that the large triangle is 1.5 times bigger than the small one.


  • Registered Users Posts: 338 ✭✭TheSunderz


    yeh was very easy tbh only part I wasnt sure on was question 9 part e on that formula thing or trial. Actually what did people get for the equation on the secound circle, radios wise ?


  • Registered Users, Registered Users 2 Posts: 37 ko3p


    Slope was 1. All you had to do was get Tan45.


  • Registered Users Posts: 6 Jimmy420


    What was the Empirical Rule?


  • Registered Users Posts: 8 electromix


    so much better than paper 1. Want to pass so bad.


  • Registered Users Posts: 44 Famoso


    I hadn't a clue of the Slope of P, so just picked 3 and continued on doing the rest of the question with that slope. Will I still get a few marks?


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  • Moderators, Education Moderators Posts: 26,403 Mod ✭✭✭✭Peregrine


    Jimmy420 wrote: »
    What was the Empirical Rule?

    It just states that, in a normal distribution, 99.7% of data will fall within three standard deviatons of the mean. You can break it down into 68% within one SD and 95% within two SDs.


  • Closed Accounts Posts: 621 ✭✭✭if832uspx4eogt


    Famoso wrote: »
    I hadn't a clue of the Slope of P, so just picked 3 and continued on doing the rest of the question with that slope. Will I still get a few marks?

    I picked 2, and you only lose marks for the first part, you'll be marked correctly for the rest (assuming you did the question right.)


  • Registered Users Posts: 1 NoDruidsPlease


    Paper two was exactly what I needed, might actually pass maths now.


  • Registered Users Posts: 9 andreideeu


    For the very first question was it 10! diveded by 6 ???? Or 10x10x10x10x10x10 ????


  • Registered Users Posts: 4 matii10


    andreideeu wrote: »
    For the very first question was it 10! diveded by 6 ???? Or 10x10x10x10x10x10 ????

    Oh God, I missed the part where it said that the numbers may be repeated. So I presume I got the whole first page wrong because of that fact. I've got 10x9x8x7x6x5 and I assume that the correct answer is 10x10x10x10x10x10.


  • Registered Users Posts: 34 Jamies15


    Actually was that slope of P definitely 1? I've been talking to a couple of people in my year who dropped from honours and I would assume know more than me and they were saying it was -1.

    I just can't understand how it could be given that it sloped upwards from left to right, is it ever possible for that to be anything but positive?


  • Registered Users, Registered Users 2 Posts: 335 ✭✭OriginV


    Messed up on the very first question about the bank pin, I wouldn't mind but I knew how to do it and did it right in the mock.


  • Registered Users Posts: 41 ConM96


    I was a reader for a candidate in the exam today and am currently studying to be a maths teacher and I can confirm that the slope was 1 and the perpendicular slope was -1. If any of you have any other questions about any of the questions on today's exam feel free to ask and I can provide you with the correct ways to do out the questions.

    Just seeing aswell some of you are asking about the pin question . The first part was 10^6.


  • Registered Users Posts: 41 ConM96


    HugsiePie wrote: »
    Question:Did any constructions come up? Waa revising them with my sister last night.

    An Enlargement came up but that was it :)


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  • Closed Accounts Posts: 70 ✭✭Eazzah


    Horrible paper.


  • Registered Users Posts: 197 ✭✭Scirpt


    What did you guys say for numerical continous/discrete question. I said numerical discrete, was just a guess!

    Edit - Also for the last one in Q1 how many ways could the 3 numbers be put in?


  • Registered Users Posts: 41 ConM96


    Scirpt wrote: »
    What did you guys say for numerical continous/discrete question. I said numerical discrete, was just a guess!

    Edit - Also for the last one in Q1 how many ways could the 3 numbers be put in?

    It was numerical continuous:)

    And the Q.1 was 6C3 which equals 20.


  • Registered Users Posts: 17 otter13


    matii10 wrote: »
    Same here. Never done enlargements and just guessed that the large triangle is 1.5 times bigger than the small one.

    never done enlargements was told we would have a choice between 6a and 6b and there wasn't so that question was out the window, attempted it anyway and got it all wrong but hopefully they give me something


  • Registered Users, Registered Users 2 Posts: 37 ko3p


    sadasdsa


  • Registered Users Posts: 41 ConM96


    ko3p wrote: »
    sadasdsa

    Yes and numerical continuous are values you can measure therefore it is numerical continuous. Google the difference between the two and it should come up.


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  • Registered Users Posts: 62 ✭✭gummibear


    ConM96 wrote: »
    It was numerical continuous:)

    And the Q.1 was 6C3 which equals 20.

    Q. 1 c...... This topic is gone off the LC ord level syllabus and is now only a HL topic so it should not have been asked!!! Arrangements yes but Combinations / selections NO!!!! Gone- not allowed... someone made a mistake putting it in there!
    :eek:


  • Registered Users, Registered Users 2 Posts: 1,139 ✭✭✭westernfrenzy


    Didn't know how to do enlargements. Q1 was struggle, Q9 last part, the slope/triangle questions and pretty much most of the paper


  • Registered Users Posts: 7 Rozada


    Hi can anyone tell me how much you would need in paper two to pass maths in general (paper one being close to a no grade after that disaster of paper)


  • Registered Users Posts: 65 ✭✭blobcat


    Anyone hear that a maths professor was on Joe Duffy talking about paper one? He said that he believed several of the questions to be of a higher level standard. An almost identical question to question six (the triangle one) was actually on the 2013 higher level paper.

    The teacher's union are having a meeting about it tonight, apparently


  • Registered Users Posts: 62 ✭✭gummibear


    "Hi can anyone tell me how much you would need in paper two to pass maths in general (paper one being close to a no grade after that disaster of paper)"
    You need 240 marks out of the 600 over the two papers. So close to 80% assuming you got a few % in Paper 1. i am serious about the mistake in q 1 c by the way. its not on your syllabus anymore. shouldn't have been asked


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  • Registered Users Posts: 8 electromix


    otter13 wrote: »
    never done enlargements was told we would have a choice between 6a and 6b and there wasn't so that question was out the window, attempted it anyway and got it all wrong but hopefully they give me something
    my teacher told us the same. But in maths exam papers it says that there gonna be no choice after 2014. I feel like i messed up a little bit my both papers.


  • Registered Users Posts: 62 ✭✭gummibear


    electromix wrote: »
    my teacher told us the same. But in maths exam papers it says that there gonna be no choice after 2014. I feel like i messed up a little bit my both papers.
    Theres been a lot of chopping and changing in last few years so some of them have slipped under the radar but one that lots of people havent spotted is that Q1c was taken off the ord level course and is now a HL topic only. it shouldnt have been asked. Every student will be entitled to full marks for this part. Thats if ye kick up over it!!! IF:)
    Rozada wrote: »
    Hi can anyone tell me how much you would need in paper two to pass maths in general (paper one being close to a no grade after that disaster of paper)

    you need 240 marks over the two papers. so if you got around 40 in paper 1 (disaster) you need around 200 in this one which is around the 67% mark. Do-able!!! Ye need to kick up over the mistake in Q1c. this is a higher level topic now and shouldnt have been asked on the OL paper.


  • Registered Users, Registered Users 2 Posts: 348 ✭✭AulBiddy


    That first question was okay but stumped at the end!!! The statistics question was fabulous, was a bit stumped for q 2 but I managed to get it right with the answer here. Circle q was great, all that I wanted in a circle q. Find the angles was good too... Didn't get the last part (if anyone did please let me know, it was the one where E was the midpoint and you had to find the area). No extremely difficult probability q (amazingly!!!) A very nice enlargement question. The cylinder with two hemispheres was a bit odd tho! Couldn't get the last part if my life depended on it

    Sorry for the little summary but I was delighted, Paper II is my worst paper out of the two.


  • Registered Users Posts: 62 ✭✭gummibear


    AulBiddy wrote: »
    That first question was okay but stumped at the end!!! The statistics question was fabulous, was a bit stumped for q 2 but I managed to get it right with the answer here. Circle q was great, all that I wanted in a circle q. Find the angles was good too... Didn't get the last part (if anyone did please let me know, it was the one where E was the midpoint and you had to find the area). No extremely difficult probability q (amazingly!!!) A very nice enlargement question. The cylinder with two hemispheres was a bit odd tho! Couldn't get the last part if my life depended on it

    Sorry for the little summary but I was delighted, Paper II is my worst paper out of the two.
    You were stumped at the end of q1 cos its a HL topic now. used to be OL but is gone and should NOT have been asked!!! time to kick up over this.


  • Registered Users Posts: 197 ✭✭Scirpt


    gummibear wrote: »
    You were stumped at the end of q1 cos its a HL topic now. used to be OL but is gone and should NOT have been asked!!! time to kick up over this.
    Are you on about the one where it asks you to say how many ways the three digits could be arranged?


  • Registered Users Posts: 70 ✭✭Tet2015


    Paper 2 was so easy that I am starting to understand why they made paper 1 challenging. I still do not forgive them though :p


  • Registered Users Posts: 2 ScealPls


    Does any site have solutions yet? found paper 1 solutions hours after the exam, any out there or does anyone know where they'll be up?


  • Registered Users Posts: 11 Bsd


    ScealPls wrote: »
    Does any site have solutions yet? found paper 1 solutions hours after the exam, any out there or does anyone know where they'll be up?

    Where are solutions for paper 1?


  • Closed Accounts Posts: 70 ✭✭Eazzah


    Found paper 2 quite difficult, not like the past papers that I've looked at. Hopefully a B1/A2 is still possible.


  • Registered Users, Registered Users 2 Posts: 102 ✭✭Almen11


    Did anyone get the answer for the question where you had to find the area of triangle ACE or something? It was a parallelogram split into two triangles that had no measurements


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