1. Ways of displaying Function “stuff”
2.1 FUN functions
Ways of displaying Function “stuff”
2.1 Function as Relations, Mapping, Table, and Graphs
I can:
Express a relation as a table, a graph, a mapping and
a set of ordered pairs.

2. Review: Can you plot points?
B (2, 7)
C (0, -4)
D (-4, -6)
E (5, 0)
F (9, -1) II I
y-axis
III
x-axis IV

3. Making A Nifty Vocabulary Book:
You and your partner should have two sheets of white paper, one sheet of color paper and one pair of scissors
Stack the 3 sheets of paper and cut them lengthwise (hotdog)

4. You and your partner each get one strip of color paper and one of each of the white strips
Stack your three strips with:
Top – white strip without graphs
Middle – white strip with graph
Bottom – color strip
Fold the strips in half so the color paper makes a cover, staple the edge
Put your name on the front cover and make a title
MORE ON THIS LATER

5. Relation ** Label the 4 quadrants Table: Graph Mapping:
Rule:
Characteristics:
Common Mistakes:
Example:
Table:
Graph
Mapping:
Relation
A set of ordered pairs
Ex. (2, 3) (4, 5) (-4, 3)
The X values
What goes into a function
Domain:
Range:
Inverse:
The y values
What comes out of a function
Switching the x and y values

6. Example 1 Given: (3, 2) (-1, 4) (0, -3) (-3, 4) (-2, -2)
1. Show the graph x y
Plot the points -3 -2 -1 3 3 -1 -3 -2 -3 -2 2 4
2. Show the mapping
3. Show the table x y
4. Give the inverse
(2, 3) (4, -1) (-3, 0) (4, -3) (-2, -2)
5. Give the domain x
{-3, -2, -1, 0, 3}
6. Give the range y
{-3, -2, 2, 4}

7. Example 2 5 7 1 4 2 Given: -9 1. Show the graph 2. Show the relation1 2 -9
Given:
1. Show the graph
2. Show the relation
3. Show the table
4. Give the inverse
5. Give the domain
6. Give the range

8. Your turn x y 4 3 -2 1 -3 2 2 -4 -4 Given: 1. Show the graph-4
Given:
1. Show the graph
2. Show the mapping
4. Give the inverse
5. Give the domain
6. Give the range

9. Vocab foldable

10. Did you master today’s objective?
Think to yourself…
Given the point (3, 2)
What is the domain? 3
What is the range? 2
What is the inverse?
( 2, 3)

11. Assignment