hey guys can you please help me- CORE MATHS C1 ADVANCED SUBSIDIARY PAPER

What date is the paper ?

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Reply 2

holly mcnally

OP

2

ImageUploadedByStudent Room1454358395.285313.jpg

ImageUploadedByStudent Room1454358412.648361.jpg

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Reply 3

holly mcnally

OP

2

Original post by Think People

What date is the paper ?

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It's not a dated paper as it is an odd one, here's a photo ImageUploadedByStudent Room1454358456.479628.jpg

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Reply 4

I never even knew they asked about f(x) in Core 1 Papers. Hang on I'll get the solutions over to you in a jiffy.

Reply 5

me2*

7) (i) 2f(x) a vertical stretch scale factor 2( if u dont get it ... it means mulitpling all y values by 2)
(ii) f(x-1) a horizontal translation by 1 unit to the right

Reply 6

me2*

F(-x) means a reflection in the y axis

Reply 7

Think People

I am not doing OCR but i can help you on Q.10.
Differentiate the equation to get dy/dx , then plug in the value of x. Solve from there.

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Reply 8

Student403

19

Original post by mattismad

I never even knew they asked about f(x) in Core 1 Papers. Hang on I'll get the solutions over to you in a jiffy.

Full solutions are not allowed to be given

Reply 9

me2*

Original post by holly mcnally

I am really struggling with questions 7,8,9 and 10. I've been trying but cant do it! help asap

For q 10 take dy/dx once you get that sub x=1 in place of x and you will see that dy/dx (the gradient) will come to a value of minus five

Reply 10

raman_17

5

Original post by holly mcnally

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Question 7ia.) is y = 2f(x) so it means a y stretch therefore you must multiply all y values by 2 and keep the x values the same.

Question 7ib.) y = f(x-1) means you are moving the whole graph to the right therefore you must keep the y values constant and change the xvalues accordingly

Reply 11

Original post by Student403

Full solutions are not allowed to be given

Oh why not - is this the latest MEI paper?

Reply 12

Student403

19

Original post by mattismad

Oh why not - is this the latest MEI paper?

No it's just a rule of the forums. We don't give the full solutions - instead we help the OP to get there

Reply 13

Original post by Student403

No it's just a rule of the forums. We don't give the full solutions - instead we help the OP to get there

I mean worked solutions?

Reply 14

Student403

19

Original post by mattismad

I mean worked solutions?

Whatever it is, if it gives the answer without them doing any work or with them being led straight to the final calculation or something, it's probably best you leave it.

@Zacken can clarify

Reply 15

jamestg

21

Original post by mattismad

I mean worked solutions?

The point of this forum isn't to just give the answers, it's not helpful to learn from something you're struggling with by just getting the answer. It's much more helpful getting assistance on how to get to the answer, that way you know how to do it the next time you're in a pickle.

Reply 16

Original post by Student403

Whatever it is, if it gives the answer without them doing any work or with them being led straight to the final calculation or something, it's probably best you leave it.

@Zacken can clarify

I didn't realise :frown:

That sucks. Oh well good to get the practice in by doing it yourself.

Reply 17