AQA A2 Mathematics MPC4 Core 4 - 9th June 2015 [Discussion &amp; unofficial markscheme]

Original post by jjsnyder

Yes, for all you know if you subbed in another value like x=3 it would be an increasing function

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How about plotting the graph? Surely that shows for all values of x in that domain it is a decreasing function?

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Reply 2525

madmenace

Original post by CD223

How about plotting the graph? Surely that shows for all values of x in that domain it is a decreasing function?

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you couldnt sub in 3, x was greate than or equal to 4

I think we may be wrong, even though its getting smaller, its still increasing because its positive?

(edited 8 years ago)

Reply 2526

Original post by madmenace

you couldnt sub in 3, x was greate than or equal to 4

I think we may be wrong, even though its getting smaller, its still increasing because its positive?

Decreasing just means that the function decreases in value when greater values of x are input. The domain was restricted to x greater than or equal to 2, so if you drew the graph beyond this point then surely that shows it's a decreasing function?

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Reply 2527

Original post by CD223

Yeah i drew the graph for this and also subbed in x =2, 3 and 4 to show it was a decreasing function! should get the marks either way :smile:

Reply 2528

Original post by HennersPD

Yeah i drew the graph for this and also subbed in x =2, 3 and 4 to show it was a decreasing function! should get the marks either way :smile:

Hope so! Need to bring this awful exam mark up somehow :/

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Reply 2529

Original post by CD223

Hope so! Need to bring this awful exam mark up somehow :/

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me too!

hope we both get into bath, it'll good to meet up in freshers :smile:

which accommodation have you applied to? :biggrin:

Reply 2530

Original post by HennersPD

me too!

hope we both get into bath, it'll good to meet up in freshers :smile:

which accommodation have you applied to? :biggrin:

Yeah man I'm hoping I got AAA comfortably so I can go!

Westwood was the only one left when I came to apply! Crazy how fast it all went. Not too bothered though - I'm sure I'll be spending most of the first year out of my bedroom anyway :wink:

Reply 2531

Original post by CD223

cool good luck then! ah nice, I've applied to polden court so that should be good! :smile:

ah yeah me too :wink:

Reply 2532

Yunus_Eskisan

Grade boundary predictions for A and A *

Reply 2533

Original post by Yunus_Eskisan

Grade boundary predictions for A and A *

A = 58
A* = 64

Personal prediction obviously. I'm hoping they're slightly more lenient but who knows.

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Reply 2534

Original post by CD223

A = 58
A* = 64

Personal prediction obviously. I'm hoping they're slightly more lenient but who knows.

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I hope so too as you know I need an A* in maths so I hope they're this or lower :smile:

Reply 2535

Original post by HennersPD

I hope so too as you know I need an A* in maths so I hope they're this or lower :smile:

Praying for us both man! September won't be fun otherwise :wink:

Reply 2536

Original post by CD223

Praying for us both man! September won't be fun otherwise :wink:

I know haha! how'd your Physics Unit 5 exam go? I had mine yesterday and thought it went well! I'm done now for the summer thank the lord! :biggrin:

Reply 2537

Original post by HennersPD

I know haha! how'd your Physics Unit 5 exam go? I had mine yesterday and thought it went well! I'm done now for the summer thank the lord! :biggrin:

Good! Did you do AQA? I made so many silly mistakes :/ but if the boundaries are the same as last year I'll be happy.

I still have M2 and a computing exam on Monday and Tuesday! :/

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Reply 2538

Original post by CD223

No, I'm on OCR B! yeah me too, it's funny what the pressure of exams does to you! :/ ah right, good luck in those, fingers crossed you'll do well :smile:

Reply 2539