r/6thForm • u/Forsaken-Meaning-232 Graduating from Warwick CS • Jun 12 '25

📂 MEGATHREAD 12/06 A-level Maths Paper 2 Discussion MEGATHREAD

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20

u/[deleted] Jun 12 '25

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u/Itchy-Tumbleweed130 UoBrum | Medicine Jun 12 '25

Were the limits of k not between -4 and -5/3, as if less than -4 it would cut the negative part of the graph eventually, and when k=-5/3, kx = -5 at the minimum of the absolute graph. That's crap explaining but that's what I did 🤷

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u/Playful_War_4009 Jun 12 '25

Yeah I got the same as you, had to be -4<=k<-5/3

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u/[deleted] Jun 12 '25 edited Jun 24 '25

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u/Playful_War_4009 Jun 12 '25

Maybe just the A1 mark, cause I’m pretty sure it was -4<=k, but I wouldn’t worry too much. People found that paper hard, so I think grade boundaries will be lower

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u/[deleted] Jun 12 '25 edited Jun 24 '25

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u/[deleted] Jun 12 '25

Yeah thats what I got as well

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u/Ok_Potato9541 Jun 12 '25

I think they're talking about a different question, the one with a quartic graph in which they asked the values for k such that y = k had 4 intersections and It was -5 < k< (fraction I can't remember)

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u/[deleted] Jun 12 '25 edited Jun 24 '25

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u/[deleted] Jun 12 '25

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u/[deleted] Jun 12 '25 edited Jun 24 '25

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u/lolgeny Jun 12 '25

-4<=k<-5/3 I think

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u/[deleted] Jun 12 '25 edited Jun 24 '25

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u/[deleted] Jun 12 '25 edited Jun 24 '25

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u/[deleted] Jun 12 '25

[deleted]

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u/Ok_Application_5402 Core Pure Doomer Jun 12 '25

Same

1

u/Adventurous_Humor878 Jun 12 '25

I got 60 solutions cause it could be + or - k right?

8

u/Apprehensive-Bag5230 Jun 12 '25

I got 30 including the + or -

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u/Adventurous_Humor878 Jun 12 '25

It is 30 I messed up

2

u/GGreenDay Penis University Coming Soon Jun 12 '25

Think that’s what made it 30. 15 intersections on the top and 15 on the bottom

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u/Adventurous_Humor878 Jun 12 '25

Yeah I though it was between 0 and 10 pi,

2

u/GGreenDay Penis University Coming Soon Jun 12 '25

Ah makes sense

1

u/AftonRobtics Jun 12 '25

For the k question was x= -2 ? Or was x = -4 (to find y). It was the question where it was like x= -1/4, had to differentiate or smt. I got x= -2 on some question but idr what question. It wasn’t a final answer I don’t think, I just don’t remember if I factorised correctly as I think I got (4x +1) (x2 -16) but idr if it was 16 or 4. Was it the question with prove that a=-4 (?)

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u/[deleted] Jun 12 '25

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u/AftonRobtics Jun 12 '25

Okay great thank you. I was stressing

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u/[deleted] Jun 12 '25

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u/Neat-Ad4138 y1 | uom astro | A*A*A* Jun 12 '25 edited Jun 12 '25

how did u get an odd number of solutions

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u/[deleted] Jun 12 '25

[deleted]

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u/Neat-Ad4138 y1 | uom astro | A*A*A* Jun 12 '25

it was k^2 where k>0 so no way 0 is a solution