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Paper 2 Revision (compiled in light of the contents of paper1) Higher Tier WJEC 1

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Topic Areas 1.Data Handling 2.Number 3.Shape, Space and Measure 4.Algebra 2

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Data Handling Scatter graphs Stem & Leaf Averages Two-way table Relative frequency Frequency polygon Questionnaires Mean from a table Tree diagrams 3

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Scatter Graphs 4

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5

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Scatter Graphs solution 6

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Scatter graphs solutions 7

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Stem & Leaf 8

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Stem & Leaf solution 9

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Averages 10

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Averages solution 11

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Two-way Table 12

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Two-way Table solution 13

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Relative frequency 14

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Relative frequency solution 15

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Frequency polygon 16

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Frequency polygon solution 17

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Questionnaires 1 18

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Questionnaires 1 solution 19

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Questionnaires 2 20

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Questionnaires 2 solution 21

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Mean from a table 22

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Mean from a table solution 23

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Tree Diagrams 24

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Tree Diagrams solution 25

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Number Fractions/percentage of a quantity Percentage change Reverse percentages Dividing quantities into a given ratio Recipe question Using a calculator Best value comparison Compound interest Standard form Upper and lower bounds 26

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Fractions/percentage of a quantity 27

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Fractions/percentage of a quantity solution 28

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Percentage change 29

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Percentage change solution 30

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Reverse percentages 31

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Reverse percentages solution 32

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Dividing quantities into a given ratio 33

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Dividing quantities into a given ratio solution 34

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Recipe Question 35

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Recipe Question solution 36

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Using a calculator 1 37

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Using a calculator 1 solution 38

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Using a calculator 2 39

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Using a calculator 2 solution 40

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Best Value comparison 41

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Best value comparison solution 42

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Compound interest 43

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Compound interest solution 44

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Standard Form 45

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Standard Form solution 46

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Upper and Lower Bounds 47

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Upper and Lower Bounds solution 48

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Shape, space and Measure Corresponding and alternate angles Travel graphs Reflections Translations Area and perimeter of circles Sector of a circle Constructions Loci Nets plans & elevations Surface area Circle theorems Similar figures Pythagoras Theorem SOHCAHTOA Cosine Rule / area of a triangle 49

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Corresponding and alternate angles 50

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Corresponding and alternate angles solution 51

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Travel graphs 52

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Travel Graphs 53

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Travel graphs solution 54

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Reflections 55

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Reflections solution 56

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Translation 57

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Translation solution 58

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Area & perimeter of circles 59

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Area & perimeter of circles solution 60

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Constructions 61

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Constructions solution 62

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Loci 63

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Loci solutions 64

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Nets plans & elevations 65

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Nets plans & elevations solution 66

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Surface Area 67

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Surface Area solution 68

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Circle Theorems 69

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Circle Theorems solution 70

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Similar Figures 71

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Similar Figures solution 72

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Pythagoras Theorem 73

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Pythagoras Theorem solution 74

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SOH CAH TOA 1 75

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SOH CAH TOA 1 solution 76

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SOH CAH TOA 2 77

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SOH CAH TOA 2 solution 78

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Cosine Rule / area of a triangle 79

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Cosine Rule / area of a triangle solutions 3 80

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Cosine Rule / area of a triangle solutions 2 81

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Sector of a circle 82

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Sector of a circle solution 83

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Algebra Expressions Substitution Expanding brackets Inequalities Equation of a line Drawing linear graphs Drawing quadratic graphs Changing the subject Proportion Linear equations Algebraic fractions Quadratic equations 1 use of formula Quadratic equations 2 completing the square Simultaneous equations 1 - linear Simultaneous equations 2 non-linear Proof Transformation of functions 84

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Expressions 85

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Expressions solution 86

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Substitution 87

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Substitution solution 88

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Expanding brackets 89

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Expanding brackets solution 90

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Inequalities 91

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Inequalities solution 92

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Equation of a line 93

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Equation of a line solution 94

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Drawing linear graphs 95

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Drawing linear graphs solution 96

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Drawing quadratic graphs 97

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Drawing quadratic graphs solution 98

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Changing the subject 99

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Changing the subject solution 100

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Proportion 101

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Proportion solution 102

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Linear Equations 103

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Linear Equations solution 104

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Algebraic fractions 105

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Algebraic fractions solutions 1 106

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Algebraic fractions solutions 2 107

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Quadratic equations 1 quadratic formula 108

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Quadratic equations 1 quadratic formula solution 109

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Quadratic equations 2 completing the square 110

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Quadratic equations 2 completing the square solutions 111

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Simultaneous equations 1 both linear 112

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Simultaneous equations 1 both linear solution 113

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Simultaneous equations 2 one non-linear 114

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Simultaneous equations 2 one non-linear solution 115

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Proof 116

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Proof solutions 117

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Transformation of functions 118

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Transformation of functions solutions 119