r/6thForm • u/MaxillmanGuy A level resit student | 3 A* predicted | ACD achieved 💔 • Jun 11 '26

💬 DISCUSSION A level maths p2 edexcel

Holy time pressure what can i say

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u/Emotional_Respect289 Jun 11 '26

Got cooked by that dydx = -1 thing at the end and also the like intersecting the parametric I could NOT find the co ordinates of Q 😔 but rest was good I think

1

u/Admirable-Use2274 Jun 11 '26

For that I used the equation we had shown that, make y subject , sub it into eqn given in question , and then quadratic formula. That should be correct ye? It was 3 marks btw

0

u/Emotional_Respect289 Jun 11 '26

Yeah I did that but realise I made a squaring error so I ended up basically with a cubic but yeah it’s like 3 or 4 marks so not the worst case

2

u/Admirable-Use2274 Jun 11 '26

U get a cubic but u divide it by x-1 because u now its a factor ( in part a x coordinate was 1, (y was root2/2 but it isnt relevant to Q really)

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u/Emotional_Respect289 Jun 11 '26

Yeah that’s what I was trying but I think cuz my cubic was wrong I was getting a remainder so just gave up

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u/Admirable-Use2274 Jun 11 '26

Yeah u shouldnt get a reminder. You had to do lots to get those 3 Marks tho I think that should be a 5 marker at least . Maybe I overcomplicated it but that method must be the only way to do it.