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Edexcel GCSE Maths Paper 1 Help Thread

TJ2001

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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Reply 1

Jack210

Hey could you tell me where i can find a list of all the non calc maths topics

Reply 2

katie0400

Where or how to learn graph transformations please

Reply 3

Jaff_

Yo! Can someone explain the alternate segment therom and proof about consecutive numbers. Thanks, much appreciated!

Reply 4

TeenRose29

WOW your so clever! :smile:

Could you help me with histograms, if that's possible?

Reply 5

username2057011

https://mrhussainmaths.files.wordpress.com/2015/07/mathswatch-higher-worksheets-aw.pdf

Reply 6

junayd1998

Anyone need any help with anything PM and I will be happy to help as it will help me.

Reply 7

Ben.M

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

Reply 8

Rajive

What are you tips for getting an A*?

Reply 9

Ben.M

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

Reply 10

TeenRose29

Original post by Ben.M

Awwhh! Thank you so much! :smile:

Reply 11

Pepsi Cola :)

Just to clarify, is this a thread about the Unit 1 Maths B Modular exam?? :smile:

Reply 12

TJ2001

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/revision-list-non-calculator.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!

Reply 13

Ben.M

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

Reply 14

Ben.M

Original post by Reachin4TheStars

Awwhh! Thank you so much! :smile:

You're welcome, I hope that all makes sense 👍😊

Reply 15

TeenRose29

Original post by Ben.M

You're welcome, I hope that all makes sense 👍😊

Perfect sense! Thank you soo muchh! :smile:

Reply 16

Ben.M

Original post by Reachin4TheStars

Perfect sense! Thank you soo muchh! :smile:

Awesome 😊 Anything else I can help with?

Reply 17

Adzkii786

How do you work out if a vector is parallel/straight line?

Reply 18

TeenRose29

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! :biggrin:

Reply 19

Ben.M

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! :biggrin:

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.