# Edexcel GCSE Maths Paper 1 Help ThreadWatch

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2 years ago
#21
(Original post by Jack210)
Hey could you tell me where i can find a list of all the non calc maths topics
http://www.examsolutions.net/maths-r...her/module.php
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#22
(Original post by Rajive)
What are you tips for getting an A*?
I would say to answer every question even if you don't know what to do try and work it out as working out marks are vital. Work hard at revising and try your best. Check your answers too. All the best of luck!
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2 years ago
#23
(Original post by Jack210)
Hey could you tell me where i can find a list of all the non calc maths topics
1. Histograms2. Cumulative Frequency – Box Plots3. Mean/ Median/ Mode etc4. Circle Theorems5. Similar Shapes – Enlargement6. Scale Diagrams7. Congruent Triangles – rules8. Algebra• Simultaneous Equations • Expand • Factorise • Quadratics • Substitute9. Probability• Including Tables and Tree Diagrams10. Standard Form11. Estimated Answers12. Proportion13. NthTerm14. Ratio15. Locus – including construction with ruler/ compass etc16. Stem and Leaf17. Four rules of number18. 3d Coordinates19. Fractions – including algebra20. Inequalities21. Index Notation – powers etc22. Graphs• Straight line y=mx+c • Quadratics• Inverse etc• Draw• Tabulate• Link equations to graphs23. Transformation• Rotation• Reflections• Translation• Enlargement24. Vectors25. Bearings26. Function Graphs27. Trigonometry Graphs – which do not require a calculator28. Rational / Irrational Numbers29. Recurring Decimals / Fractions30. Inequalities31. Surds32. Expressions → Area / Volume or Length.
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#24
How do you work out if a vector is parallel/straight line?
If the vectors are multiples of each other, they are parallel to each other. If vectors are multiples (so parallel) and start from the same point, they are a straight line. Hope this has helped! Good luck!
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#25
(Original post by katie0400)
Where or how to learn graph transformations please
Y=F(X)+A
Move up A units
Y=F(X)-A
Move down A units
Y= F (X+A)
move left A units
Y= F (X-A)
Move right A units
Y=AF(X)
Stretch vertically s.f A
Y=F(AX)
Stretch horizontally s.f 1/A
Y=-F(X)
reflect in the X axis
Y=F(-X)
Reflect in the Y axis

Hope this has helped! Good luck!
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2 years ago
#26
(Original post by Ben.M)
Area of a circle = πr^2
Circumference of a circle = πd
Area of a sector = θ/360 x http://prntscr.com/b8ciig^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.
Also

Area of cylinder 2 πrh excluding: circles
Volume of pyramid LxWxH / 3
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#27
(Original post by Reachin4TheStars)
WOW your so clever! Could you help me with histograms, if that's possible?
Aw thank you very much! 😊
For histograms, just remember frequency density is frequency/class width. So if your given a bar and asked to work out the actual amount do frequency density x class width. If you remeber those basic principles you should be fine. Good Luck!!
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2 years ago
#28
(Original post by Ben.M)
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.
What's θ sorry? Can I just do the 360 x πr^2 instead and for the other one 360 x πd instead?
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2 years ago
#29
(Original post by TJ2001)
Aw thank you very much! 😊
For histograms, just remember frequency density is frequency/class width. So if your given a bar and asked to work out the actual amount do frequency density x class width. If you remeber those basic principles you should be fine. Good Luck!!
Ty Babz
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#30
(Original post by Pepsi Cola :))
Just to clarify, is this a thread about the Unit 1 Maths B Modular exam??
I did Maths A, but I'm pretty sure people are advising for both A and B on the thread 😊
1
2 years ago
#31
How to do

Cumulative frequency
Factorize
Expand
Simplify
How to work out percentages , ect..

Basically the first 20+ question topics , enough to get a C
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#32
(Original post by csweetlove)
How to do

Cumulative frequency
Factorize
Expand
Simplify
How to work out percentages , ect..

Basically the first 20+ question topics , enough to get a C
Cumulative Frequency
In drawing the graph work out the actual cumulative frequencies by adding the frequencies together as you go up the table. Then plot them at the upper end of the class width. Then join them with a smooth curve, usually looks S shaped.
Factorizing
Expanding
Basically times the outside by everything inside.
E.G. 4n(n^2 + 2)
4n X n^2 = 4n^3. 4n X 2 = 8n
So... 4n^3 + 8n

If you have two sets of brackets times everything in one by everything in the other, using FOIL. First, Outside, Inside, Last.

Factorising
I'm struggling to put this one into words so just a video here which should help.

Simplifying

Hope this has helped you! Good luck!
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#33
(Original post by Reachin4TheStars)
Ty Babz
You're Welcomw! Glad to be of help.
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#34
(Original post by Reachin4TheStars)
What's θ sorry? Can I just do the 360 x πr^2 instead and for the other one 360 x πd instead?
I think by θ, he means how many degrees the sector is
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2 years ago
#35
(Original post by TJ2001)
I think by θ, he means how many degrees the sector is
Ohh ok, ty
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2 years ago
#36
How can I work out/estimate the median from a histogram table??
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#37
How can I work out/estimate the median from a histogram table??
Hopefully this video can help! Good luck!
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2 years ago
#38
(Original post by TJ2001)
Hopefully this video can help! Good luck!
Thankyou so much!
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2 years ago
#39
I'm getting really confused with algebraic fractions such as this (sorry for bad quality)

could you help me solve it?
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2 years ago
#40
Could you explain how to find a perpendicular line from a given line equation or co-ordinates please if that makes sense? I'm really not sure on it at alllll 😂
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