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Grade 9 Maths Paper GCSE (and other difficult GCSE questions) - 2018 thread

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This paper is great! How long did it take you to make?
Original post by NineOfDiamonds
This paper is great! How long did it take you to make?


Thank you so much :smile: I’d say just shy of one week
Original post by Gent2324
ah ok, is that the hardest bit or is the -x bit harder? im saying this because im assuming theres some catch to make it really hard or something that i cant see yet?


Made any progress?
Original post by Y11_Maths
Made any progress?


kind of, i got that 9root5 -5x + 3 = 0 is that correct so far?
Original post by Gent2324
kind of, i got that 9root5 -5x + 3 = 0 is that correct so far?


No, how have you come to this conclusion?
this paper looks so interesting; I can't wait to do it later:woo:
Original post by Toastiekid
this paper looks so interesting; I can't wait to do it later:woo:


Thank youuuuu
Original post by Y11_Maths
No, how have you come to this conclusion?


y^2 = 45-x^2
so y = root45 - x
y = 3root5 - x

since 3y-2x+3 = 0
3y = 9root5 - 3x
thefore its 9root5-3x-2x+3=0
9root5-5x+3 = 0
Original post by Gent2324
y^2 = 45-x^2
so y = root45 - x
y = 3root5 - x

since 3y-2x+3 = 0
3y = 9root5 - 3x
thefore its 9root5-3x-2x+3=0
9root5-5x+3 = 0


Have you been taught how to solve simultaneous equations with circle equations?
Original post by Y11_Maths
Have you been taught how to solve simultaneous equations with circle equations?


no i thought this was just a quadratic one?
Original post by Gent2324
no i thought this was just a quadratic one?


The equation of a circle is x^2 + y^2 = radius^2
To begin to solve this question you must

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Original post by Y11_Maths
The equation of a circle is x^2 + y^2 = radius^2
To begin to solve this question you must

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Original post by Gent2324

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Not quite but right idea.

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Original post by Y11_Maths
Not quite but right idea.

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Original post by Gent2324

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Yes this is correct
Bloody fantastic effort. It's such a legitimate looking paper. Isn't question 15 a bit harsh for 4 marks though?

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Original post by Y11_Maths
Yes this is correct


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Original post by I hate maths
Bloody fantastic effort. It's such a legitimate looking paper. Isn't question 15 a bit harsh for 4 marks though?

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Haha thank you so much. And yes this is correct. I see what you mean and I’m a harsh individual. They have to work hard for each individual mark :wink:
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Avatar for Notnek
Notnek
21
Original post by I hate maths
Bloody fantastic effort. It's such a legitimate looking paper. Isn't question 15 a bit harsh for 4 marks though?

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I glanced at all the questions a few days ago and I felt the same about this one. I thought I might have missed an easier method.

I haven’t tried all of them but I agree that it looks like a brilliant paper and I bet most A Level students couldn’t come up with a GCSE paper this good.
Original post by Gent2324

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(edited 6 years ago)

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