Unit 1: Linear Equations, Inequalities, Functions, and Systems xxiv

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• Chapter 1: Equations and Inequalities xxiv
• Prerequisite Skills xxiv
• 1.1 Apply Properties of Real Numbers 2
• 1.2 Evaluate and Simplify Algebraic Expressions 10
• Assessment: Quiz for Lessons 1.1-1.2 16
• Graphing Calculator Activity: Evaluate Expressions 17
• 1.3 Solve Linear Equations 18
• Graphing Calculator Activity: Use Tables to Solve Equations 25
• 1.4 Rewrite Formulas and Equations 26
• Mixed Review for TEKS 33
• 1.5 Use Problem Solving Strategies and Models 34
• Assessment: Quiz for Lessons 1.3-1.5 40
• 1.6 Solve Linear Inequalities 41
• Problem Solving Workshop 48
• 1.7 Solve Absolute Value Equations and Inequalities 51
• Investigating Algebra: Absolute Value Equations and Inequalities 50
• Assessment: Quiz for Lessons 1.6-1.7 58
• Mixed Review for Teks 59
• Assessment: Chapter Summary and Review 60
• Assessment: Chapter Test 65
• Assessment: TAKS Preparation and Practice 66
• Chapter 2: Linear Equations and Functions 70
• Prerequisite Skills 70
• 2.1 Represent Relations and Functions 72
• 2.2 Find Slope and Rate of Change 82
• 2.3 Graph Equations of Lines 89
• Assessment: Quiz for Lessons 2.1-2.3 96
• Graphing Calculator Activity: Graph Equations 97
• 2.4 Write Equations of Lines 98
• Problem Solving Workshop 105
• Mixed Review for TEKS 106
• 2.5 Model Direct Variation 107
• 2.6 Draw Scatter Plots and Best-Fitting Lines 113
• Investigating Algebra: Fitting a Line to Data 112
• Assessment: Quiz for Lessons 2.4-2.6 120
• 2.7 Use Absolute Value Functions and Transformations 123
• Investigating Algebra: Exploring Transformations 121
• 2.8 Graph Linear Inequalities in Two Variables 132
• Assessment: Quiz for Lessons 2.7-2.8 138
• Mixed Review for TEKS 139
• Assessment: Chapter Summary and Review 140
• Assessment: Chapter Test 145
• Assessment: TAKS Preparation and Practice 146
• Chapter 3: Linear Systems and Matrices 150
• Prerequisite Skills 150
• 3.1 Solve Linear Systems by Graphing 153
• Investigating Algebra: Solving Linear Systems Using Tables 152
• Graphing Calculator Activity: Graph Systems of Equations 159
• 3.2 Solve Linear Systems Algebraically 160
• Assessment: Quiz for Lessons 3.1-3.2 167
• 3.3 Graph Systems of Linear Inequalities 168
• 3.4 Solve Systems of Linear Equations in Three Variables 178
• Investigating Algebra: Graphing Linear Equations in Three Variables 177
• Mixed Review for TEKS 186
• 3.5 Perform Basic Matrix Operations 187
• Assessment: Quiz for Lessons 3.3-3.5 193
• Graphing Calculator Activity: Use Matrix Operations 194
• 3.6 Multiply Matrices 195
• 3.7 Evaluate Determinants and Apply Cramer's Rule 203
• 3.8 Use Inverse Matrices to Solve Linear Systems 210
• Assessment: Quiz for Lessons 3.6-3.8 217
• Problem Solving Workshop 218
• Mixed Review for TEKS 220
• Assessment: Chapter Summary and Review 221
• Assessment: Chapter Test 227
• Assessment: TAKS Preparation and Practice 228
• Assessment: Cumulative Review, Chapters 1-3 232