Junior Cert 2011 : Maths Paper 2

KaBooom

TheRedDevil10 wrote: »

These are the ones that will most likely come up

• A diagonal bisects the area of a parallelogram
• The measure of the angle at the centre of a circle is twice the measure of the angle at the circumference, standing on the same arc
• If two sides of a triangle are equal in measue, then the angles opposite thes sides are equal in measure
• The measures of the three angles in a triangle add up to 180'
• A line through the centre of a circle, perpendicular to a chord, bisects the chord

THANK YOU!! I took a risk by only learning these theorems, and these are all of the ones that came up

TheRedDevil10

no problem, delighted myself

KaBooom

:L Proper delighted about paper 2, everyone was saying it was hard afterwards, i thought it was grand, thought it would be much worse.. I think Ill pass maths cus of it

cantanstrophe

Probably failed. Ah well.

AnnKiins

cantanstrophe wrote: »

Probably failed. Ah well.

I probably failed as well, It was extreamely hard!!!
The only question I understood was question six.

And what was up with no constructions at all?
I'm absolutely torn since I spent a good few hours on them last night.
Plus there was like 2 theorems and two more questions that were nearly exactly like theorems except it was worded differently.

King John The Last

I thought it was harder that P1. I still liked it though.

shadowninty

Free hug for who ever said that circle theorem would come up
Reckon I at least got 87%, hope that's enough for an A :L

Conchir

That was fantastic! I answered everything, think I got a really good grade.
I was chuffed with the theorems as well

omg a kitty

damn, i didn't learn theorems and 3 of them come up along with others that are literally theorems
oh well, aced the rest, should get 75%+

AnnKiins

@ TheRedDevil10-
I LOVE YOU
I learned all the theorems you said and there were innit~

But in my opinion, I probably got a D/C, I did terrible ; ^ ;
It was so so so so hard, I just wanted to walk out of the exam .__.
It was much, much different from the last few years exam papers.
The line question was messed up, WHAT WAS UP WITH THAT HOUSE.
And what was the P, axil symentry answer??

ohdechertig

Am I right in saying for question 2(C)(ii) you had to do simultaneous equations to find the point of intersection before you did the axial symmetry?

AnnKiins

omg a kitty wrote: »

damn, i didn't learn theorems and 3 of them come up along with others that are literally theorems
oh well, aced the rest, should get 75%+

Poor thing :c
I'm glad you did well in the rest though!
It was a really weird exam paper, who would have known that two questions were filled with theorems with NO constructions at all!!

AnnKiins

ohdechertig wrote: »

Am I right in saying for question 2(C)(ii) you had to do simultaneous equations to find the point of intersection before you did the axial symmetry?

That would make sense since theres an extra = -1 at the end.
But I skipped that question ; ^ ;

Conchir

From what I can remember I got (-1, -4) for the axial symmetry

Indiego

That was ok
Q1 - im pretty sure i got full marks in
Q2 - think i got full marks again, except the last bit, C (ii), did anyone else get (0,5)?
Q3 - almost definately full marks again, as long as i took the right approach to C (i)
Q4 - went ok, C was a bit tricky, i left it and came back to it near the end, i think it was ok, the part (ii) was a bit long winded :L was veryyy tempted to write 'look at it, you can clearly see its a parallelogram, you dont need me to explain why '
Q5 - mehhhh im never confident about trig, got 5 marks in the mocks :L part C was hard, the fact that they didnt say 'to the nearest whole number/two decimal places' kinda threw me, cos i didnt get a whole number did anyone else get 34.4 (was actually 34 4/9) for part (i)?
Q6 - Was ok, my histogram was dire, but other than that it was ok

FatRat

I found it to be extremeley easy!

All was going brilliantly, I was sticking to what I was aiming for, which was 100% until I got to Q5. It is probably the easiest question on the paper, it's just it was then that it hit me that I had about 10 minutes left :L Me and about 5 others left in the room. Once I hit 5C I literally had 5 minutes left. Spent about a minute on 5C, I will definitely get most of the marks first the first part in 5C, but I completeley skipped the second part.
I amazed myself and I completed statistics in 3 minutes. People might think I'm exaggeration with "3 minutes" but I'm not :pac: I did get one of the questions wrong, the thing about 50% of students and my frequency curve was of the orst standard imagineable :pac: But I did it, and I reckon I got about 35 marks out of 50 for it. :cool:

In the end though, I'm nearly certain I got 200/200 for the first 4 questions. Only skipped the very end of Q5 so I reckon close to 40/50.

Was it just my calculator or something, but it would solve anything when put into inverted form. As in for 1 question I needed to Sin invert something but it kept coming out "Math error" And the piece I was trying to invert was right! Still though, only lost a mark by not writing the finish answer.

I reckon about 95% or more in Paper 1 and maybe a bit over 90% for paper two. I did get an A, but looking back at it, there was a really good chance to get 100% in that test. If it wasn't for my timing in Paper 2 and my very stupid way of trying to solve indices questions in paper 1, I could well have gotten it. But I suppose that's like saying "If I had gotten every question right I would have gotten 100%" :cool:

I needed extra paper. Nearly needed a 2nd batch of extra paper too, anyone else?

omg a kitty

AnnKiins wrote: »

Poor thing :c
I'm glad you did well in the rest though!
It was a really weird exam paper, who would have known that two questions were filled with theorems with NO constructions at all!!

yeah, I was hoping to claim a few percentage with constructions :mad:, apparently all the theorems that came up were ones my teacher told us to learn, if you do learn them. damn..
am i the only one who thought Q5 c was very simple but took forever?

Indiego

ohdechertig wrote: »

Am I right in saying for question 2(C)(ii) you had to do simultaneous equations to find the point of intersection before you did the axial symmetry?

Ohhhhh that would make sense :L
damn....

her0fire

What did everyone get for the very first question?
And what did everyone get for the one with the 50% students one

ScummyMan

What did everyone think of Project Maths? Manageable enough i thought, timing terrible though, didnt get it finished

15 Questions! :eek:

Indiego

her0fire wrote: »

What did everyone get for the very first question?
And what did everyone get for the one with the 50% students one

1A - 100cm

6B (iii) 52marks

Dont know if im right though :P:pac:

TheRedDevil10

her0fire wrote: »

What did everyone get for the very first question?
And what did everyone get for the one with the 50% students one

100cm for the first question
47marks for 50% of students

rorrissey

I thought a histogram was the liney thingy. I've been calling histograms barcharts! ooh weell. I think I did fair enough in this paper though!

Desire.

That was grand. I think I messed up a couple of bits, but I'd say I definitely got an A.

her0fire wrote: »

And what did everyone get for the one with the 50% students one

I got 52.

ohdechertig

I'm sure my x value was 3..

Indiego

Desire. wrote: »

I got 52.

Same woo, i thought i got that one wrong :L

shadowninty

It was 51 or 52 for the pass mark. Sorry man

AnnKiins

rorrissey wrote: »

I thought a histogram was the liney thingy. I've been calling histograms barcharts! ooh weell. I think I did fair enough in this paper though!

Hahaha, Hard luck! But fair play, they do look like barcharts :L

FatRat

Indiego wrote: »

Q2 - think i got full marks again, except the last bit, C (ii), did anyone else get (0,5)?

That was the trickiest question in the whole thing. I tried doing out how I was gonna work it out in my head but then decided it'd be best to draw it. So I got some graph paper and used that to plot the answer.
You already had a point for the line K but you needed 2 to draw the line, so I found the point of intersection by using simultaneous equation with the equation of the line L and K. That gave me a point on L and K. K was perpendicular to L so I found L by drawing it so that K was 90 degrees to it.

From tech graph I knew that in axial symmetry how far a point is from the axis (which was the line L for this Q) It'll be the same length on the other side of the axis. So I drew it like it was a tech graph question and got something like (-3,-4) as the point, I think. Thinking back at it, all that was needed was to find the point of intersection and then the point of intersection is your midpoint. From there, just use translation to find it on the other side of the axis. I drew it instead of that.
I hope to god it's right! It took AGES! And a lot of work too.

ohdechertig

I got 52 too! Delighted.