The Student Room Group
Uni students - Complete our survey >>
Uni students - Complete our survey >>
Uni students - Complete our survey >>

GCSE EDEXCEL MATHS Paper 1 Higher Tier 24th May 2018 unofficial mark scheme

Scroll to see replies

Original post by Georgiana22
What about those reflected triangles? Was it a 180degree rotation against (-2,1)?


Sorry (-1, -2) ?! It was the junction of those 2 lines
Original post by troydeeney09
9(a**)=71
8(a*)=64
7(a)=55
6(b)=42
5(c)=29
4(c-)=18


I think that's too high mate. 2/3 of the paper is grade 7-9 based o how can you need 71/80 to get a grade 9, when before you needed like 63. i think i'll stay around there.
Original post by sabrinaxox_X
yayyyy i actually did that who else really liked that paper i mean even the last questions were easy


Tell me pls about those triangles reflected . Was it rotated 180 against (-1,-2)?
Original post by Georgiana22
Sorry (-1, -2) ?! It was the junction of those 2 lines


yes ur correct
11 was 45-x because it said simplest form . Yeah I messed up its 90 -2x
(edited 5 years ago)
7 is 216
Original post by Georgiana22
How about those reflected triangles? From first to third was a rotation of 180degrees against (-2,1) ?


Rotation 180 degrees anti clockwise centre (-2,-1)
Original post by baffed
How many marks was the last question like i didnt even see it and now I’m shooting myself


It was like 4 or 5 marks I can't remember. A pretty simple boundaries question involving basic linear algebra and a simple quadratic. The only reason I noticed a backpage question is because I was fiddling with the paper before the exam and saw it lol.
(edited 5 years ago)
I’ve got 216 for the triangle as well, everything else I got right, if I’m 100% sure I got all the answers right, how much will I be guaranteed to get?
Original post by ivandunnachie
Yh thats wgat i thought but lots of people saying like 22,21.8 and other stuff.

Original post by Shaffer96
For the proportion question I got 400/36x^2


Same exept x^4....instead of x^2
Original post by Shaffer96
Rotation 180 degrees anti clockwise centre (-2,-1)


Thanks!!! Correct (-2,-1) basicaly the junction of those 2 lines, right.
Reply 71
Avatar for bcapon
bcapon
9
Did anyone do an enlargement of -1 or have I flopped that question as well
Original post by Arjun2363
Post ur answers!

1)a) 3 11/28
b) 1 3/5
2)140 houses
3)30% higher
4)25 days
5)a) Draw the pyramid
b)96 cm^2 (surface area of pyramid)
6)22,20 (Coordinates of squares)
7)166cm^2n (area of trainagle)
8)60
9)a)6
b)1
c)1/9
10)
11) 90- 2x
12) 4 (n^2-n)+1
13)5
14)y+400/(6x^2)^2
15)12x-12
16)0.12
17)Sin graph move down two
18)
19) b = 2/3a + 2
20)2,3,4


what was question 4?
Reply 73
Avatar for jmmk
jmmk
3
oh well thank god I'm not the only one

I got 216 cm^2 not 166...think 216 is right
Original post by bcapon
Did anyone do an enlargement of -1 or have I flopped that question as well


I said rotation 180 but it's the same as emlargement of -1 scale. Centre (-2,-1) right?
Reply 75
Avatar for nzy
nzy
17
Original post by RyanNyathi
11 was 45-x because it said simplest form


If you actually worked it out x was equal to 30. I put 45-x at first, but 45-30 is 15, but the angle we needed to work out was 30 degrees too (90- (2x30).
Reply 76
Avatar for nzy
nzy
17
Original post by Georgiana22
Same exept x^4....instead of x^2


Couldn't you have simplified it to 100/9x^4, and then 10/3x^3 ?
Original post by Georgiana22
Same exept x^4....instead of x^2


Can’t remember if I put x^4 or x^2 😂 but I think I did to the power of 4 anyways
bit poo mate
Original post by RyanNyathi
11 was 45-x because it said simplest form


its not,
90-2x
is not the same as 45-x

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you