Unit 2A - Exponential and Logarithmic Functions 
        2.1 Change in Arithmetic and Geometric Sequences
        2.2 Change in Linear and Exponential Functions
        2.3 Exponential Functions
        2.4 Exponential Function Manipulation
        2.5.A Exponential Function Context and Data Modeling
        2.5.B Exponential Function Context and Data Modeling
        2.6 Competing Function Model Validation
        2.7A Composition of Functions
        2.7B Composition of Functions
        2.8 Inverse Functions
        Unit 2A REVIEW