1. Functions
Chapter 3

2. Lesson 3.1
Graphing Relationships

3. Relating Graphs to Situations
1. Read the graphs from LEFT to RIGHT to show time passing.
List key words in order and decide which graph shows them.
Pick the graph that shoes all the key phrases in order

4. Sketching Graphs for Situations
Continuous Graphs
Graphs that are connected lines or curves
Discrete Graphs
Graphs that only have distinct points

5. Sketching Graphs for Situations
Simon is selling candles to raise money for the school dance. For each candle he sells, the school will get $2.50. He has 10 candles that he can sell.

6. Lesson 3.2
Relations and functions

7. Showing Multiple Representations of Relations
Relationships that can be represented by a set of ordered pairs are called relations.
Relations can be shown as TABLES, GRAPHS, and as a MAPPING DIAGRAM

8. Finding the Domain and Range of a Function
The domain of a relation is the set of first coordinates (or x-values) of the ordered pairs.
The range of a relation is the set of second coordinates (or y-values) of the ordered pair.
These can also be written as compound inequalities when taken from a graph.

9. Identifying Functions
A function is a special type of relation that pairs each domain value with EXACTLY one range value.