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AQA maths core 1, 13th May 2015

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Original post by B82
Would I have lost a mark for leaving my answer for the chord as 5root2 - 1 instead of 7?

also for the cubic graph, I did the repeated root at 3, I'm assuming I would only lose one mark?

also for the values for k in the circle question, if I rearranged the question into a quadratic incorrectly but continued on to get values for the incorrect equation, how many marks would I lose


5root2 doesn't equal 7 :s-smilie:

And I think you'll get one mark at least for getting the general shape of the curve right
Reply 341
Avatar for Freyk2
Freyk2
2
Original post by JNicko
Yeah, I got this

Then the triangle was 180/5, so the area was 180/5 - 108/5 = 72/5


I got 54 for the area of the trapezium so 270/5-108/5=162/5

was it a trapezium or triangle ???
Original post by tanyapotter
if you think last year's exam was harder than this year's, wouldn't the grade boundaries go higher this year?

for the record, i found this exam much harder than the june 2014 mock i did, yet i think i lost fewer marks in it


Yeah but everyone i talked to found 2014 easier than this paper so i was going on the majority that i've heard about
Original post by Sail last
#

I got 7 as well but I left it as root 49 stupidly. The question was only worth 2 marks do you think I will lose a mark?


I don't think so, root 49 is still correct
It tends to vary each year so have a quick check here:

http://www.aqa.org.uk/exams-administration/about-results/uniform-mark-scale/convert-marks-to-ums

Scroll down and take a look at some past papers to get an idea.


Original post by 2014_GCSE
I also don't understand UMS... so quoting this for visibility
Reply 345
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aoxa
11
Original post by 2014_GCSE
I also don't understand UMS... so quoting this for visibility


Uh, I'll have a go at explaining it for you.

So each mark is worth a certain number of UMS points - this changes every year.

80% UMS = A
70% UMS = B
60% UMS = C
50% UMS = D
40% UMS = E

The UMS grade boundaries never change, but the raw grade boundaries do (thats how many marks you need for each grade, as each year the number of UMS each mark is worth changes, depending on how easy/hard the paper is)

Hopefully this helped, a little?
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Reply 347
Avatar for B82
B82
1
Original post by Madmatician
5root2 doesn't equal 7 :s-smilie:And I think you'll get one mark at least for getting the general shape of the curve right


5 root 2 - 1 I said, which does equal 7
alright thanks, and it was out of 2 right
Everyone try not to worry too much, the people who are on this forum tend to be higher scorers anyway, more studious so not necessarily reflecting the rest of the regular study world :biggrin:
Original post by aoxa
Uh, I'll have a go at explaining it for you.

So each mark is worth a certain number of UMS points - this changes every year.

80% UMS = A
70% UMS = B
60% UMS = C
50% UMS = D
40% UMS = E

The UMS grade boundaries never change, but the raw grade boundaries do (thats how many marks you need for each grade, as each year the number of UMS each mark is worth changes, depending on how easy/hard the paper is)

Hopefully this helped, a little?

Does it go up in 10s, or can you get like 98 UMS?
Because I think I got around 73/75 which just scrapes 100UMS, would that be 90UMS or like 98?
(edited 8 years ago)
Original post by B82
5 root 2 - 1 I said, which does equal 7
alright thanks, and it was out of 2 right


Yeah I meant 5root2 - 1, sorry
It doesn't equal 7
Original post by Freyk2
I got 54 for the area of the trapezium so 270/5-108/5=162/5

was it a trapezium or triangle ???


It was a trapezium
Original post by Achroite
For drawing the graph x^2(x-3) I drew it passing through the origin then touching at three. How many marks will I have dropped out of the three?


Anyone???
Original post by Madmatician
I don't think so, root 49 is still correct


Thanks for the consoling! :redface:
Reply 354
Avatar for aklack
aklack
What did everyone get for the translation question?
Original post by Achroite
Anyone???

You'd get 1/3 for that
Original post by Heffalump .
Does it go up in 10s, or can you get like 98 UMS?
Because I think I got around 73/75 which just scrapes 100UMS, would that be 90UMS or like 98?


It would be around 98/100 UMS
Original post by person121
I got 162/5 for the shaded area. The area of the trapezium was 54 and the area from the integration was 108/5. 54-108/5=162/5


2nd that
Original post by aklack
What did everyone get for the translation question?


x^2-x+4
Original post by 0123456543210
Help, what was the original p(x) in 7)b)i) and by what was it divided to leave a remainder?
thanks.


x^2(x-3)+20 was p(x)
(x+2)(x^2-5x+10) or (x-2) I can't remember.
(edited 8 years ago)

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