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### Special Functions

Step functions have graphs that are a series of steps. The steps can be going upward or downward.

Constant functions are of the form f(x) = c, where c is a real number. Their graphs are horizontal lines.

A piecewise function is defined differently on different intervals in the domain. The graph consists of a different graph on each interval

The absolute value function is an example of a piecewise function. Its graph looks like a V, translated horizontally or vertically.

### Special Functions

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

- Intro 0:00
- Step Functions 0:13
- Graph
- Example: Birthday Function
- Absolute Value Functions 5:21
- Graph
- Piecewise Functions 7:34
- Example
- Lecture Example 1 10:20
- Lecture Example 2 14:38
- Additional Example 3
- Additional Example 4

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