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About this resource ix
About eBookPLUS and studyON xii
Acknowledgements xiii
Unit 1 Money, Measurement and Relations 1
1 Consumer arithmetic 1 1
1.1 Overview 1
1.2 Rates and percentages 2
1.3 Wages 7
1.4 Earning wages 10
1.5 Working overtime 13
1.6 Earnings commission and piecework 17
1.7 Payments government allowances and pensions 23
1.8 Personal budgets 26
1.9 Review: exam practice 31
Answers 36
2 Consumer arithmetic 2 42
2.1 Overview 42
2.2 Unit cost
2.3 Mark-ups and discounts 46
2.4 Goods and services tax (GST) 50
2.5 Profit and loss 53
2.6 Simple interest 57
2.7 Compound interest and inflation on costs 61
2.8 Exchange rates 65
2.9 Dividends 67
2.10 Review: exam practice 72
Answers 75
Topic 1 Consumer arithmetic 80
Practice Assessment 1 Problem solving and modelling task 81
3 Pythagoras’ theorem and mensuration 84
3.1 Overview 84
3.2 Pythagoras’ theorem in two dimensions 85
3.3 Pythagoras’ theorem in three dimensions 90
3.4 Perimeter and area I 95
3.5 Perimeter and area II 101
3.6 Volume and capacity 109
3.7 Surface area of three-dimensional objects 118
3.8 Review: exam practice 127
Answers 131
4 Similar figures and scale factors 133
4.1 Overview 133
4.2 Similarity of two-dimensional figures 134
4.3 Linear scale factors 142
4.4 Scale drawings maps and plans 150
4.5 Area and volume scale factors156
4.6 Review: exam practice 161
Answers 168
Topic 2 Shape and measurement 171
5 Linear equations 172
5.1 Overview 172
5.2 Linear patterns 173
5.3 Solving simple linear equations 178
5.4 Solving further linear equations 180
5.5 Developing linear equations 185
5.6 Review: exam practice 190
Answers 194
6 Straight-line graphs and their applications 198
6.1 Overview 198
6.2 Constructing straight line graphs 199
6.3 Determine and interpret the slope and intercepts of straight line graphs 215
6.4 Modelling practical situtions with straight line graphs 227
6.5 Review: exam practice 235
Answers 240
7 Simultaneous equations and their applications 247
7.1 Overview 247
7.2 Solving simultaneous linear equations graphically 248
7.3 Solving simultaneous equations algebraically 256
7.4 Solving practical problems using simultaneous equations 261
7.5 Piecewise linear graphs and step graphs 269
7.6 Review: exam practice 281
Answers 286
Topic 3 Linear equations and their graphs 291
Unit 2 Applied Trigonometry, Algebra, Matrices and Univariate Data 299
8 Applications of trigonometry 299
8.1 Overview 299
8.2 Review of trigonometric ratios 300
8.3 Applications of trigonometric ratios 304
8.4 Area of triangles 318
8.5 Angles of elevation and depression 323
8.6 The sine rule 328
8.7 The cosine rule 335
8.8 True bearings 341
8.9 Review: exam practice 346
Answers 351
Topic 1 Applications of trigonometry 354
9 Linear and non-linear relationships 355
9.1 Overview 355
9.2 Substitution 356
9.3 Formulas 360
9.4 Transposition 365
9.5 Review: exam practice 368
10 Matrices and matrix arithmetic 373
10.1 Overview 373
10.2 Types of matrices 374
10.3 Operations with matrices 384
10.4 Matrix multiplication 389
10.5 Applications of matrices 401
10.6 Review: exam practice 406
Answers 411
Topic 2 Algebra and matrices 416
11 Univariate data analysis 417
11.1 Overview 417
11.2 Classifying and displaying data 418
11.3 Construct, describe and interpret dot plots and stem and leaf plots 429
11.4 Construct, describe and interpret column graphs and histograms 435
11.5 Measures of centre 441
11.6 Measures of spread 452
11.7 Review: exam practice 461
Answers 466
12 Univariate data comparisons 480
12.1 Overview 480
12.2 Constructing boxplots 481
12.3 Outliers and fences 486
12.4 Parallel box plots 490
12.5 Review: exam practice 497
Answers 503
Topic 3 Univariate data analysis 508
Practice Assessment 3 Unit 2 examination 509
Practice Assessment 4 Units 1 & 2 examination 517
Glossary 527
Index 531