OCR MEI - C1 - 13th May 2015

Thread closed. Don't start a fake thread telling people who are already worried about an exam tomorrow about something that goes against what they have planned. Please get a life maybe. Stop sitting around pretending your the chief examiner of every subject in every forum. This is unacceptable.

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Reply 41

Danny.L

3

Original post by CancerousProblem

lol dude my teacher would take away close to all the marks avaliable in the question if we did -9/2 = -9 even if we had all the working
u lucky man

Same here, it was the very last bit of working, so it was the last thing I had to do before getting the answer, so I got the first 2/3 marks for it

Reply 42

Velocity_

18

i need help, question 7 on the june 2012 paper. How do you do this? i used the quadratic formula but obviously found the points it intercepts the x axis.... this is the only question i got wrote. thanks

Reply 43

jakoblauritzen

b^2-4ac > 0 and you solve it that way :smile:

Reply 44

liverpool2044

10

the values are higher than minus root 5 and lower than root 5, this shows its lower than the root 5 which k is so theres no roots

Reply 45

animefan

9

If you've done past papers you'll understand my drift, but does anyone reckon we'll get a horrible reciprocal graph like in Jan 2007? I'm really hoping not :s-smilie:

Reply 46

Smug Life

12

Original post by Smithh98

Jan 2013 - u
June 2013 - u
June 2014 - c
June 2015 - hoping for an a i think

How is that even possible? No offence, but that's ridiculous.

Reply 47

Smug Life

12

Original post by micaela_m

Does anyone have any predictions for what the Section B questions might be on? I'm hoping there's one on circles. Also can sin, cos, tan graphs come up for the graphs transformations??

There was a circle one last year when I did it. I reckon they'll leave it out.

Reply 48

AbdulArshad

1

Original post by micaela_m

Does anyone have any predictions for what the Section B questions might be on? I'm hoping there's one on circles. Also can sin, cos, tan graphs come up for the graphs transformations??

I'm almost 100% sure there will be a section b question on completing the square and probably polynomials. I think a question involving a shape such as question 10 on June 2012 May come up. And they can't ask about sin, cos and tan graphs as that's on the c2 spec not the C1 :smile:

Reply 49

jakoblauritzen

Every section b for c1 is generic, there's an f(x) question.... A circle question...

Reply 50

Harrycarter96

1

If you've done past papers you'll understand my drift, but does anyone reckon we'll get a horrible reciprocal graph like in Jan 2007? I'm really hoping not

Could possibly, hasn't been one like that for a while!! But its okay, when you see a question like that pause and break it down - remember its C1, the maths behind the question wont be too bad. For example for the Jan 2007 instantly break it down into: intersections and circles :smile:

(edited 8 years ago)

Reply 51

suzywithaZY

18

This is supposed to be easiest exam as I'm doing C3 this year too, but I'm actually quite worried about it. The number of stupid mistakes I consistently make, like srsly xD

Reply 52

xoharrypotter

13

http://www.mei.org.uk/files/pdf/formulae.pdf

Might be a good idea to look through this right now and tomorrow morning ❤️

Reply 53

Harrycarter96

1

Original post by thechemistress

This is supposed to be easiest exam as I'm doing C3 this year too, but I'm actually quite worried about it. The number of stupid mistakes I consistently make, like srsly xD

Im doing A2 and retaking this exam.. I have exactly the same problem as you haha! Need my calculator for safety!!

Reply 54

micaela_m

2

Does anyone have any predictions for what the Section B questions might be on? I'm hoping there's one on circles. Also can sin, cos, tan graphs come up for the graphs transformations??

Reply 55

micaela_m

2

Original post by AbdulArshad

I'm almost 100% sure there will be a section b question on completing the square and probably polynomials. I think a question involving a shape such as question 10 on June 2012 May come up. And they can't ask about sin, cos and tan graphs as that's on the c2 spec not the C1 :smile:

How would they do completing the square for Section B like how would they carry it on if you know what I mean, would it turn into a circles thing?
And okay thanks I will have a look at the shape question in the 2012 paper!
And okay thanks that's good I knew they couldn't ask specifics but I thought they might ask us to translate/stretch graph etc to test transformations knowledge rather than it being similar to a C2 question.
Thanks for clearing that up tho!!

Reply 56

Tnek

Can someone please explain to me how to do f(x) questions. I am getting confused between the factor theorem, the remainder theorem,finding roots and polynomials. Question 12 on the January 2013 paper is an example.

Reply 57

Ali-c

1

12i) sub in x=1 to the equation. It will equal 0, then divide by (x-1). i got x^3 + x + 10
12ii) x= -2 is a second root.
12iii) divide x^3 + x + 10 by (x+2). You should get a quadratic. Then use the discriminant to show that it is less than 0, so the only linear factors are (x+2) and (x-1)

did this paper earlier today :smile:

Reply 58

AbdulArshad

1

12) i)

Sub x = 1 into f(x). You should get 0 as your answer.

Then divide f(x) by (x - 1) as x = 1 in factor terms is (x - 1). Then you should get a cubic equation and the (x - 1) factor.

ii)

Sub in different numbers into f(x). Try x = -2 :smile:

iii) The cubic equation you got in part i), divide that by the root you found in part ii) (it should be x = -2).

Then you will get a quadratic equation after dividing it.

Then use the discriminant b^2 -4ac > 0 to probe there are only two roots as the discriminant will come out negative.

Hope this helps :smile:

Reply 59

AbdulArshad

1

Original post by micaela_m

How would they do completing the square for Section B like how would they carry it on if you know what I mean, would it turn into a circles thing?
And okay thanks I will have a look at the shape question in the 2012 paper!
And okay thanks that's good I knew they couldn't ask specifics but I thought they might ask us to translate/stretch graph etc to test transformations knowledge rather than it being similar to a C2 question.
Thanks for clearing that up tho!![/Q

it'll be a question similiar to Question 11 on January 2013 :smile:

like it probably ask for intersections and tangents :smile:

Hope this helps!

OCR MEI - C1 - 13th May 2015

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