All Junior Cert Mathematics posts
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    what did people think of p.2? davidogrady

    it was okay like and opinions ?

    1. avatar image

      Orlamariaflanagan

      BEST THEOREM EVER

    2. avatar image

      davidogrady

      lol ya was certain it was pythagoras before it all

    3. avatar image

      sorecauvanesa

      I only learned theorems 19 and 14 so I didn't know how to structure it

    4. avatar image

      Elisha447

      It wasn't too bad. What graph did you draw to show 2015 and 2005? I did 2 histograms but I think it's wrong :(

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      jackkfleming

      I did a bar chart and put each similar bars beside each other like they do in some questions from the paperes

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      Ooooooooo

      Would a line and plot graph be ok?

    7. avatar image

      jackkfleming

      ya

    8. avatar image

      Elisha447

      Does anyone know if a histogram was okay??

    9. avatar image

      davidogrady

      i did a histogram aswell ,twill be grand

    10. avatar image

      Elisha447

      Ok Thanks :)

    11. avatar image

      davidogrady

      was that a simultaneous equation towards the end or not ?

    12. avatar image

      Ooooooooo

      Yeah it was a simultaneous equation

    13. avatar image

      davidogrady

      oh god

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      Liam_4376

      how did you do the area of a circle touching the triangle points?

    15. avatar image

      davidogrady

      what did ye get as an answer

    16. avatar image

      Ooooooooo

      X=3 and y=-1

    17. avatar image

      davidogrady

      oh okay

    18. avatar image

      mathswhiz101

      the hypothenuse of the triangle was the diameter of the circle

    19. avatar image

      mathswhiz101

      Ye should all be studying for CSPE .....

    20. avatar image

      davidogrady

      yes exactly

    21. avatar image

      Whitestar

      fcuk the paper

    22. avatar image

      Emma_5811

      Terrible didnt have a clue

    23. avatar image

      xroisinx

      was a stem and leaf graph okay for showing the 2015 and 2005 information?

    24. avatar image

      SryanBruen

      Yes it was a lovely paper. It was very easy and I'm glad it didn't turn out like I thought it would.

    25. avatar image

      cmck134

      What was the area of the circle, anyone get 61 over 4 pi cm2

    26. avatar image

      annie1996

      It was horrible ! Like how can you find the surface area is there are no numbers?!? I'd be lucky enough to get a C

    27. avatar image

      Dok101

      @cmck134 Yeah Im pretty sure I got that

    28. avatar image

      ug_roland2504

      the bigger box sides were 2 units

      the smaller box sides were 1unit

      it was in the question

    29. avatar image

      SryanBruen

      Yeah those were in the question Annie? ^. Though they were strange to be honest, like it said find the AREA, so my unit of measurement was units squared? (I never saw that before....)

    30. avatar image

      ug_roland2504

      i got 28 units squared for that question

    31. avatar image

      darraghob

      are 2 pie charts ok for the graph question?

    32. avatar image

      mazink0204

      Steam bruen calls it easy, then gets a c

    33. avatar image

      SryanBruen

      I will not get a C ya weirdo.

    34. avatar image

      annie1996

      Or the question on coordinate geometry where they asked about the circle ? Like what was that ? 😂

    35. avatar image

      Gift_3466

      Did anyone at all know how to do the last part of the last question. q 12, like I only got A but how were you supposed to find B and C???

    36. avatar image

      Theresa_3825

      For C, you use 1\2 x a x h. I used Pythagoras to find h (height). For B, you multiply 12 by x. You got x in part (i) of question 12.

    37. avatar image

      Elisha447

      For b wasn't it 12 x 7?? Because it was the same as a ? Maybe not 😂

    38. avatar image

      Theresa_3825

      I got 12 x 7 for one of them. I can't remember which side was what letter 😃

    39. avatar image

      Gift_3466

      Ohh, I thought the two were separate shapes all together. Well thanks for the explanation

    40. avatar image

      Theresa_3825

      So did I. I only realised 10 minutes before the exam was over 😂

    41. avatar image

      Gift_3466

      Did you ever get an answer for the cubes and right angle triangle question??

    42. avatar image

      Theresa_3825

      Yes. I'm not sure if I got them right but for (i) I got 30 units^2. For (ii) I got root 8 or 2 by root 2. For (iii) I got root 17. For (iv) I got 2 by root 17 over 3. I forgot what it was in decimal form.

      It's over and done with now so don't stress out 😊

    43. avatar image

      Gift_3466

      Okay I won't, I just hope I did well enough anyway

    44. avatar image

      Aimeedonaghey01

      Was a stem and leaf diagram okay?

    45. avatar image

      SryanBruen

      Am I the only one here who did a Trend / Line graph for that question?

    46. avatar image

      Aimeedonaghey01

      I know a couple who did it so I say you're fine

    47. avatar image

      Aimeedonaghey01

      People*

    48. avatar image

      needhelp101

      WENT ABSOLUTELY HORRIFIC. theorem 19 and 14 both didnt come up at all. Failed it.

    49. avatar image

      EH458

      Did anyone else do a two way stem and leaf diagram for the question with the % of female parliament members? That was one of the only ways I could think of doing it

    50. avatar image

      EH458

      I think I did perfectly fine in paper 2, went smoothly enough I think 💁🏼

    51. avatar image

      Suitcasey114

      Did anyone else do a bar chart,for the female members of parliament?

    52. avatar image

      Andrew_7539

      Did anyone do a stem and Leaf diagram

    53. avatar image

      SryanBruen

      Suitcasey114 I was going to do a bar chart but then I thought that it would look messy. I thought that a line graph was the clearest and least messy graph I could do.

    54. avatar image

      Suitcasey114

      I don't see how the line graph would work,though.I'm not being rude,I just can't see it.Looking back,stem and leaf would have been the best,but I didn't think of that.Only thing is,because a bar chart is so clear (to me,at least) I didn't do workings,and just drew and labelled the bar chart.If it's wrong,I'm screwed

    55. avatar image

      SryanBruen

      It would work 100%? You have two lines and you plot the points on the figures of the graph. Then connect the dots and make a line.

    56. avatar image

      SryanBruen

      I also use two different colours for lines and make a key to tell which is 2005 and 2015. I used the boxes for 1 country per box and there was 28 countries. If I did a bar chart, it would look real messy and confusing - I would have to make every bar small and tiny to fit in with the small boxes. It is for this reason why I didn't do one of them and did a line graph instead.

    57. avatar image

      Suitcasey114

      I'm starting to see it now,but I still think stem and leaf would have been best

    58. avatar image

      SryanBruen

      Yeah I'm not looking for an A bro haha. I'm looking for a B.

    59. avatar image

      SryanBruen

      But yeah to answer people's questions about the stem and leaf, they are perfectly acceptable because the question says:

      Display the data GRAPHICALLY in a way that allows you to compare the data for the two years. Label your graph(s) clearly. Show any calculations that you make.

      And it says on the internet:

      "A stem-and-leaf display is a device for presenting quantitative data in a GRAPHICAL format".

      I hope this answer your question

    60. avatar image

      Theresa_3825

      Would 2 separate histograms be okay? I used the frequency table.

    61. avatar image

      SryanBruen

      Yes it would be acceptable

    62. avatar image

      needhelp101

      What if you used one histograms but put them both on it ?

    63. avatar image

      ug_roland2504

      if you do 2 histograms you are not really comparing them. You are just showing each graphically as individuals not in a comparison.

    64. avatar image

      Blathnaiddoolan

      What did you get for question 12 (b) (i)???

    65. avatar image

      SryanBruen

      My workings out of that Blathnaiddoolan

      Soh, Cah, Toa?

      I just used Tan (though it's not a right-angled triangle....)

      Tan 70 degrees = x/7

      7 Tan 70 degrees = x

      19.23cm = x

      I probably did it wrong LOL

    66. avatar image

      ug_roland2504

      it was something like 10.23

    67. avatar image

      SryanBruen

      Can u show me how u got that? ^ Like see how I got mine

    68. avatar image

      sethreed

      you had to spilt the isosceles triangle into two to get two right angled triangles

    69. avatar image

      Fiddlestix

      Guys anyone do pie chart ?? So worried!

    70. avatar image

      Blathnaiddoolan

      Thank you what about 7(b) 8(c) and 5(a) ???

    71. avatar image

      Theresa_3825

      For 5a I said no because you end up with 6 which I not equal to 0. For 7b, I got 90 degrees. I used SSS to prove congruency. For 8a, I think I got 16 degrees or something. This is the smaller angle because the other angle was 74 degrees roughly.

    72. avatar image

      SryanBruen

      Yeah I got that for 5a.

    73. avatar image

      Blathnaiddoolan

      Yeah I got all of that aswell

    74. avatar image

      Kagalwala

      For 7(b) I said the angle in a semi circle is 90 degrees which is why y is 90.

    75. avatar image

      darraghob

      Yah fiddlestix I did two pie charts for the graph question

    76. avatar image

      Theresa_3825

      Kagalwala, I think that might be okay too. I mentioned that |AC| was the diameter too because why not 😂

    77. avatar image

      sophie544

      The answer for that question was 80 degrees as it was a cyclic quadrilateral and opposite angles sum up to 180 degress

    78. avatar image

      Fiddlestix

      Thank you so much for letting me know! Relieved daraghob!

    79. avatar image

      Fiddlestix

      Thank you so much daraghob! Relieved now I'm not the only one

    80. avatar image

      Theresa_3825

      Sophie, that's for part (i), we're talking about part (ii) 😊

    81. avatar image

      No11

      Did anyone get the second part of quest one with the group of 6 numbers where it told you the mean median and range ?

    82. avatar image

      No11

      *question

    83. avatar image

      Elisha447

      Yeah I did!! I think I got 37 and 7 I can't fully remember it was 30 something anyways

    84. avatar image

      No11

      Cool I couldn't get it I spend like 15 mins at the end but then I just left it

      Do you get the question about the rectangle where the length was 7 and the W was y

    85. avatar image

      Max Gsamelov

      For showing the data on the graph for 2005 and 2015, did u have to draw a graph or could you use the printed on the next page

    86. avatar image

      Michelle Uwakk

      Paper 2 was not perfectly ok and way easier than Paper 1

    87. avatar image

      Johnobrien2k13

      i did like 2 histograms stuck together so it was like a load of bars stuck together with the intervals on the bottom and matching up 2015 and 2005 for each interval. i thought you couldnt do a bar chart because it was continuous data?

    88. avatar image

      Johnobrien2k13

      i think stem and leaf was what we were meant to do tho

    89. avatar image

      Me

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