The following are links to download the online textbook chapters:
Glencoe Mathematics Algebra 2
Chapter 1: Solving Equations and Inequalities
Chapter 2: Linear Relations and Functions
Chapter 3: Systems of Equations and Inequalities
Chapter 6: Quadratic Functions and Inequalities
Chapter 7: Polynomial Functions
Chapter 9: Rational Expressions and Equations
Chapter 10: Exponential and Logarithmic Relations
Chapter 11: Sequences and Series
Chapter 12: Probability and Statistics
Chapter 13: Trigonometric Functions
Chapter 14: Trigonometric Graphs and Identities