Maths HL P1 & 2 2017

BadBannana · 09-06-2017 07:49PM

Better safe than sorry, they've been shaking things up alright. P2 content in P1 for English too

Nyctolust · 09-06-2017 09:56PM

I wasn't surprised to see P2 elements on today to be honest, in my school we've always been warned ever since first year that the SEC was deliberately starting to mix material from both papers so they wouldn't seem so distinct/separate anymore.

pianoperson · 10-06-2017 12:45AM

Liordi wrote: »

Some of the questions on that paper really threw me. Got most of Q8 and 9 wrong.
How were we supposed to do these?

&

Could be completely wrong, but in terms of the range question:
One real root means cubic graph cuts x axis once, that means the minimum point is greater than zero or the maximum point is less than zero so you subbed in your values from the previous part in for x and then used greater than or less than zero inequalities.

Liordi · 10-06-2017 11:08AM

Yeah, that makes sense. I guess all 3 roots of that were equal or something.

On an unrelated note, if you use the correct method of getting an answer with the incorrect figures, do you still get marks? e.g for 9D I made up numbers for A and B that I put in 9B and then used those numbers to solve for y = 5.2.

Nyctolust · 10-06-2017 11:49AM

You'd still get most of the marks for having the correct method. If you show every step they'll know that you understood what you were supposed to be doing and just had the wrong figure initially.

roisiny · 10-06-2017 01:52PM

For the grid, did the interest charged not change every month, as was on the amount remaining?

So each week the interest was slightly less as you were being charged .0165% of outstanding amount instead of on the initial loan?

I do accounting and stared at that for a solid ten min before I knew what they were on about ...

blueee · 10-06-2017 02:05PM

This isn't about paper 1, but do we need to know the Junior Cert proofs for paper 2? Like deriving pythagoras's theorem for example?

ciara18 · 10-06-2017 02:11PM

roisiny wrote: »

For the grid, did the interest charged not change every month, as was on the amount remaining?

So each week the interest was slightly less as you were being charged .0165% of outstanding amount instead of on the initial loan?

I do accounting and stared at that for a solid ten min before I knew what they were on about ...

Yeah exactly, the interest changed each week depending on how much of the initial lump sum was outstanding!

roisiny · 11-06-2017 07:32PM

blueee wrote: »

This isn't about paper 1, but do we need to know the Junior Cert proofs for paper 2? Like deriving pythagoras's theorem for example?

Yes, all JC ones can be tested

Ponguin · 11-06-2017 09:59PM

roisiny wrote: »

Yes, all JC ones can be tested

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BadBannana · 12-06-2017 02:34PM

I am literally not going to college. I just failed paper 2.

Jijsaw · 12-06-2017 02:38PM

BadBannana wrote: »

I am literally not going to college. I just failed paper 2.

If it makes you feel any better, I have heard this from every person today in my school. The SEC can't fail everyone so it will be taken into consideration how challenging the majority of people found the paper, and the marketing scheme will be adjusted appropriately.

Don't give up hope yet

Liordi · 12-06-2017 02:39PM

Thought the ending of Q9 alongside the question with the centroid were hard.

BadBannana · 12-06-2017 02:41PM

Every question was a f*cking disaster. I'm the arse of the bell curve that'll get the rest of ye into college

Mr Rhode Island Red · 12-06-2017 03:14PM

No geometric proofs
No trigonometric proofs
No constructions
Wtf SEC

I thought it was a bit better than paper 1, but that's not saying much

thetalker · 12-06-2017 03:15PM

Is it just me that preferred p2 over P1 immensely?
I thought if I had a bit more time I would've gotten it perfect, P1 with financial and the periodic function was alot trickier.

Mr Rhode Island Red · 12-06-2017 03:18PM

thetalker wrote: »

Is it just me that preferred p2 over P1 immensely?
I thought if I had a bit more time I would've gotten it perfect, P1 with financial and the periodic function was alot trickier.

Normally it's paper 2 that drags down my grade, but this time round it could be the one that saves my ass.

Liordi · 12-06-2017 03:19PM

Yeah, I am hoping that paper 2 drags my H3 up to a H2 but it'll probably be close.

wanderer100 · 12-06-2017 03:24PM

Bit of a meh paper. Absolutely nailed some questions like the long statistics one but failed others for sure. That Q9 was atrocious!! Hoping for a H4 to get into college!! Devastated that there was no theorems, proofs or constructions!! Spent 2 hours yesterday learning them. Fcuk off SEC!!

EireLemon · 12-06-2017 03:28PM

The question with the circle and three points, the triangle and finding point P and the last question were all ridiculously hard. There was barely any info for the last question!

carefulnowted · 12-06-2017 03:30PM

Absolutely loved that paper.

Not going to postmortem it because it'll only make me feel like I've failed.

Off to cram Irish and Biology now!

wanderer100 · 12-06-2017 03:32PM

Just gonna unfollow this thread real quick before I find out what a mess I made of that paper. Onto Bio and Irish

thetalker · 12-06-2017 03:35PM

Apperantly there's a formula in the log tables to find the centre for that triangle Q.
I didn't know it but a friend did so I'm not sure where or what it involves.

Nyctolust · 12-06-2017 03:47PM

Normally I do better in P2 than I do in P1, and normally I love co-ordinate geometry of the line and circle and normally I'm okay at probability and statistics... But that was genuinely such a disaster for me. Every single bit. I only needed a H7 but after that paper I know there's no way I could've gotten over 20% total and I'm already looking up methods and costs of repeating Maths alone next year.

Now to avoid the postmortems and cram for Irish and Biology too.

blueee · 12-06-2017 04:22PM

I found paper 2 worse, I think. Probability and stats were fine but the geometry and that question about the cylinder and the sphere and Q9, I wasn't getting any of it!

VG31 · 12-06-2017 04:23PM

I thought Q9 was fairly OK. The circle and triangle (finding the point P) questions were much harder.

jogd1234 · 12-06-2017 04:54PM

VG31 wrote: »

I thought Q9 was fairly OK. The circle and triangle (finding the point P) questions were much harder.

The circle bit was alright I though, just sub in the x and y coordinates. The triangle question was tough but (I think) I managed to get it, wasn't too bad of a paper overall imo

S_Hick12 · 12-06-2017 06:15PM

Pretty sure I messed the whole question up, but does anyone remember the value of n they got for the last part of Q1?

Sackninja · 12-06-2017 06:17PM

S_Hick12 wrote: »

Pretty sure I messed the whole question up, but does anyone remember the value of n they got for the last part of Q1?

21 days I believe.

Liordi · 12-06-2017 06:17PM

S_Hick12 wrote: »

Pretty sure I messed the whole question up, but does anyone remember the value of n they got for the last part of Q1?

I got 21 but I don't know if I did it properly.

Maths HL P1 & 2 2017

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