GCSE Edexcel Prep: Maths Flashcards Preview

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Flashcards in GCSE Edexcel Prep: Maths Deck (22)
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1

Any straight line on a graph can be written in the form of...

y=mx+c

2

Define Factorising

The opposite of Expanding. Factorising extracts common factor. E.g. 2x²-14x...
=2x(x-7)

3

Define Expanding

Time-sing the number outside brackets by inside terms
E.g. 4(3x+2)
=12x+8

4

How would you simplify an algebraic expression?

You would find common factors within the terms and simplify it to its simplest form

5

What are corresponding angles?

F angles

6

What are alternate angles?

Z angles

7

What are Supplementary & Complementary Angles?

Supplementary Angles: either of two angles whose sum is 180°
Complementary Angles: either of two angles whose sum is 90

8

How would you find a parallel line of Equation?

1. A parallel line of Equation would have the same gradient as the line, i.e. y=3x+c, the parallel line would again be y=3x, but with a different gradient.
2. You have to sub in the given coordinate. For example, (2,4)- x=2, y=4. Then you solve it. 4=(3X2=6)-c.
C=2... Ans= y=3x-2

9

How would you find a perpendicular line of Equation

1. First you find the gradient
2. Then you do the negative reciprocal of the gradient. (E.G. 2x= -1/2x)
3. You then, find the midpoint of the given coordinates.
4. Then you substitute them in and find your perpendicular line of Equation.

10

What is the formula for the volume & surface area of a cube & cuboid?

Cube: Cuboid:
Volume= s³ Volume= ldh (lengthxdepthxheight)
Surface Area= 6s² Surface Area= 2(ld+lh+dh)

11

What is the formula for any prism volume and surface area?

Volume= area of its cross section x length( or height)
Surface Area= Sum of area of all of its faces

12

What's the formula for a cylinder? Volume & Surface Area?

Volume= πr²h
Surface Area= 2πrh+ 2πr²

13

What is the formula of volume & surface area of a pyramid?

Volume= 1/3 x area of base x perpendicular height
Surface Area= sum of area of all of its faces

14

What is the formula of volume & surface area of a cone?

Volume= 1/3 x πr² x perpendicular height
Surface Area= πrl (l is the slant height)

15

What is the formula of volume & surface area of a frustum of a cone?

Volume= 1/3πR²H - 1/3πr²h (whole cone- removed cone)
Surface Area= πRL - πrl (surface area of whole cone-surface area of removed cone)

16

What is the formula of volume & surface area of a Sphere?

Volume= 4/3πr³
Surface Area= 4πr²

17

What is the sum of exterior angles?

360⁰

18

Each Exterior Angle?

360⁰/no.of sides

19

a + 5 = −5a + 5
Whats a?

0

20

5p − 14 = 8 p + 4
Whats p?

-6

21

−3(4x + 3) + 4(6x + 1) = 43
Whats x?

4

22

t= 6m+7
Make m the subject

-7... t-7= 6m
/6... t-7/6= m