Some Common Symbols in the Book 1
Chapter 12 Quadratic Equation in One Variable 2
Ⅰ．Quadratic Equation in One Variable 4
12.1 Solving Quadratic Equations in One Variable by Formula 4
12.2 Solving Quadratic Equations in One Variable by Factoring 15
Have a Read A Quadratic Equation in One Variable in Our Ancient Time 19
12.3 The Discriminant of the Roots of Quadratic Equations in One Variable 21
12.4 The Relationship between the Roots and the Coefficients of Quadratic Equations in One Variable 24
12.5 The Factorization of a Trinomial of Degree Two(Solving by the Formula) 29
12.6 The Applications of Quadratic Equation in One Variable 33
12.7 Fractional Equation That Can Be Changed into Quadratic Equation in One Variable 37
Have a Read The Solution Method of Simple Equation of Higher Degree 44
Ⅱ．The Simple Systems of Quadratic Equations in Two Variables 47
12.8 The System Containing a Linear Equation in Two Variables and a Quadratic Equation in Two Variables 47
12.9 The System Containing a Quadratic Equation in Two Variables and Another System Which Can Be Factorized into Two Quadratic Equations in One Variable 51
Summary and Review 54
Review Exercise 12 58
Self-examination 12 61
Chapter 13 Functions and Their Graphs 62
13.1 Rectangular Coordinate System 64
13.2 Functions 70
13.3 Graphs of Functions 75
13.4 Linear Functions 81
13.5 The Graph and Properties of Linear Function 84
Have a Read The Graph Solution of System of a Linear Equations in Two Variable 89
13.6 Graphs of Quadratic Function y=ax2 92
13.7 Graphs of Quadratic Function y=ax2+bx+c 97
13.8 Inverse proportion Function and Its Graph 106
Summary and Review 111
Review Exercise 13 114
Self-examination 13 117
Chapter 14 Preliminary Statistics 119
14.1 Mean 121
14.2 Mode and Median 131
14.3 Variance 135
14.4 Calculate Mean,Standard Deviation and Variance by Using a Calculating Machine 147
14.5 Frequency Distribution 151
Have a Read How to Take Samples from Total Group 160
14.6 Field Work 163
Summary and Review 166
Review Exercise 14 169
Self-examination 14 172
Appendix Ⅰ Answer Key 174
Appendix Ⅱ Some Terms in the Book with Chinese Translation 186