Edexcel GCSE Maths Paper 1 Help Thread Watch

TJ2001
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If anyone is in need of help in some last minute revision for the maths exam post your questions here and I'll try my best to help. I got an A* this November so want to try and help anyone if I can. Good Luck with the exam everyone!
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Jack210
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Hey could you tell me where i can find a list of all the non calc maths topics
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katie0400
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Where or how to learn graph transformations please
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Jaff_
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Yo! Can someone explain the alternate segment therom and proof about consecutive numbers. Thanks, much appreciated!
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TeenRose29
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WOW your so clever! Could you help me with histograms, if that's possible?
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username2057011
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https://mrhussainmaths.files.wordpre...ksheets-aw.pdf
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junayd1998
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Anyone need any help with anything PM and I will be happy to help as it will help me.
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Ben.M
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(Original post by katie0400)
Where or how to learn graph transformations please
Transformations of functions

f(x) > f(x+a) = Translation, vector -a, 0

f(x) > f(x)+a = Translation, vector 0, a

f(x) > af(x) = Stretch, parallel to the y axis, scale factor a

f(x) > f(ax) = Stretch, parallel to the x axis, scale factor 1/a

f(x) > -f(x) = Reflection in the x axis

f(x) > f(-x) = Reflection in the y axis
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Rajive
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What are you tips for getting an A*?
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Ben.M
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(Original post by Reachin4TheStars)
Could you help me with histograms, if that's possible?
Histograms

Remember:

•Frequency = Area of a bar
•Frequency Density = Frequency / Class Width
•So Frequency = Frequency Density x Class Width
•So Frequency Density (y axis) x Class Width (x axis) = Area of the bar = Frequency
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TeenRose29
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(Original post by Ben.M)
Histograms

Remember:

•Frequency = Area of a bar
•Frequency Density = Frequency / Class Width
•So Frequency = Frequency Density x Class Width
•So Frequency Density (y axis) x Class Width (x axis) = Area of the bar = Frequency
Awwhh! Thank you so much! :heart:
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Pepsi Cola :)
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Just to clarify, is this a thread about the Unit 1 Maths B Modular exam??
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TJ2001
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(Original post by Jack210)
Hey could you tell me where i can find a list of all the non calc maths topics
. This website outlines a lot of them and seems like a good source. http://fhsmathsrevise.weebly.com/rev...alculator.html
Your best bet would be past papers to make sure you've covered all the types of questions that may come up. Good Luck!
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Ben.M
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(Original post by Jaff_)
Yo! Can someone explain the alternate segment therom and proof about consecutive numbers. Thanks, much appreciated!
When doing proofs involving consecutive numbers or multiples, use n

For an even number, use 2n

For an odd number, use 2n+1 or 2n-1

When squaring, remember to square fully, for example (2n+1)^2 is (2n+1)(2n+1) = 4n^2 + 4n + 1
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Ben.M
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(Original post by Reachin4TheStars)
Awwhh! Thank you so much! :heart:
You're welcome, I hope that all makes sense 👍😊
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TeenRose29
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(Original post by Ben.M)
You're welcome, I hope that all makes sense 👍😊
Perfect sense! Thank you soo muchh!
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Ben.M
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(Original post by Reachin4TheStars)
Perfect sense! Thank you soo muchh!
Awesome 😊 Anything else I can help with?
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Adzkii786
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How do you work out if a vector is parallel/straight line?
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TeenRose29
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(Original post by Ben.M)
Awesome 😊 Anything else I can help with?
Ummm, the expressions for volume and area like the pi ones, cuz I wanaa make sure I know 'em properly, thanks very much! & That's the last thing, hopefully!
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Ben.M
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(Original post by Reachin4TheStars)
Ummm, the expressions for volume and area like the pi ones, cuz I wanaa make sure I know 'em properly, thanks very much! & That's the last thing, hopefully!
Area of a circle = πr^2
Circumference of a circle = πd
Area of a sector = θ/360 x πr^2
Arc length of a sector = θ/360 x πd
Circumference of a sector = Arc length + SIDES
Volume of a sphere = 4/3 πr^3 (will be on formula sheet)
Volume of a hemisphere = Volume of a sphere, all divided by 2, so a quarter of a sphere would be divided by 4 etc.
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