Lesson 9-7: Special Functions

Videos on the online textbook include:

1. Greatest integer function
2. Step function
3. Absolute value function
4. Piecewise defined function

Lesson 9-6: Analyzing Functions with Successive Differences

Videos on the online textbook include:

1. Choose a model using graphs
2. choose a model using differences or ratios
3. Write an equation
4. Write an equation for a real world situation

Lesson 9-5: Solving Quadratic Equations by Using the Quadratic Formula

Videos on the online textbook include:

1. Use the quadratic formula
2. Solve quadratic equations using different methods
3. Use the discriminant