CCEA AS Maths- C1 Wed 18th May

I think the issue with that question was that it cancelled to 2-X whereas the other bracket was 3x - 6, so most people probably didn't realise to take -3 out instead of a positive 3?
A lowered grade boundary would be amazing

@aoifea100


Did anyone get the same answers as these?

1)2-√5

2)i) (2,4)
ii) (4,3)
iii) a= -4

3)x= (7/2)

4)a) -1/(3x)
b) (2,3)

5)ii) (x+4)(2x-3)(x-6)
b)c= -3/2

6)a)a= -1, b= -8
b)ii) x+12y-44=0

7)ii)w=15cm, h=20cm
8)a)(1-3√5)/2 ≤ k ≤ (1+3√5)/2
b) b^2 -4c = 1

@aoifea100

Did anyone get the same answers as these?

1)2-√5

2)i) (2,4)
ii) (4,3)
iii) a= -4

3)x= (7/2)

4)a) -1/(3x)
b) (2,3)

5)ii) (x+4)(2x-3)(x-6)
b)c= -3/2

6)a)a= -1, b= -8
b)ii) x+12y-44=0

7)ii)w=15cm, h=20cm
8)a)(1-3√5)/2 ≤ k ≤ (1+3√5)/2
b) b^2 -4c = 1

can you post a solution to 7i and 6a! Can't remember the qu for 6a and I'm going round in circles still for 7i!!! Thanks for posting answers is put my mind t ease!!!

Okay thank you so much! I have got method marks for both but just couldn't get the final answers!
do you reckon grade boundaries will be high??

Hows everyone feeling for C1 Maths for CCEA tomorrow?

Hadn't seen a CCEA thread, so decided to make one!

First time I hear about this board!

First time I hear about this board!

@lmg1 @ozmo19


How did yous find it? All was good at the start; q7 the proof was dodgy, I didn't get the final answer; but most of my working was broadly similar, so hopefully a few marks there.
Q8 ii I think, where b2-4c = n and (n+1) was such a dodgy question, didn't have a clue there.
Other than that, not bad- but definitely on the hard side.


Your thoughts on how it went?

Ill talk you through the method
for 6a
you find dy/dx and equal it to 0
Sub in x=2 and get an equation
Sub in x=-4/3 and get an equation
Solve simultaneous equations.

for 7i
[(40x30)/2] = wh + 0.5 x w x (40-h) + 0.5 x h x (30-w) (i think)
rearrange for h
you end with h=40 - (4w/3)
Then A=wh so sub in h.

No, i think they'll be relatively low, or so I'm hoping they are!

@ozmo19 yeah most of these answers look similar, definitely glad you got that -1/3x, I thought I messed that up a lot
For 8a I did it < in place of ≤ which I know is wrong now, but I got the same answer so I should at least get most of the marks for that part
Everything but 8b looks the same as what I got

What do you think the A will be??

It would probably be similar to last years paper. Do you know what the grade boundaries were for June 2015.

Does anyone have a solution for this?