1. Monday, N𝐨𝐯𝐞𝐦𝐛𝐞𝐫 𝟐𝟓𝟔 ∙𝟏 𝟗𝟗 𝟎
Do Now: Solve the SAT questions:
1. Which of the relations below is a function, and why?
{(2,3), (3,4), (5,1), (6,2), (2,4)}
{(2,3), (3,4), (5,1), (6,2), (7,3)}
{(2,3), (3,4), (5,1), (6,2), (3,3)}
The graph of a relation is show at the right. Is this relation a function?
Yes No
Cannot be determined from a graph
Today’s Agenda: 1. IAN Page 46: Function or Not a Function? Class Activity
2. IAN Page 47: Domain and Range Notes
Learning Target #13: I can identify whether a relation is a function or not a function and justify my answer.
Learning Target #14: I can identify the domain and range of a function from a table or set of data points.
Joke of the Day: What did the monkey say when he caught his tail in the revolving door?
End
Homework is at

2. 46 Not a Function Function Cut out the relations
Sort your relations into two groups: functions or not functions
Affix the two groups into your IAN under the appropriate headings on Page 46
Complete the evaluation question in a complete sentence: “How do I know whether a relation is a function or not a function?” 46
Function
Not a Function
15 minutes
IAN Page 46: Function or Not a Function?
Learning Target #13: I can identify whether a relation is a function or not a function and justify my answer.
Evaluation Question: How do I know whether a relation is a function or not a function?
Homework is at

3. 471 DOMAIN AND RANGE Evaluation (Class Work):
Copy the following three relations onto Page 48.
Indicate whether the relation is a function or not a function.
Write the Domain and Range for each.
A. {(1,3), (4,6), (2,-5), (-2,4)} B. C.
Domain Inputs X-coordinates Range Outputs Y-Coordinates
The domain of a relation is the set of all inputs, or x-coordinates.
The range of a relation is the set of all outputs, or y-coordinates.
Examples:
{(0,3), (2,9), (-3,5), (0,2), (1,1)}
Not a function
Domain: {-3, 0, 1, 2 }
Range: {1, 2, 3, 5, 9 } x y -5 1 -2 2 6 x y 1 2 3 -3 4
Function
Domain: {1,2,3,4 }
Range: {-3,0,1 }
IAN Pages 47/48: Domain and Range Notes and Practice
Learning Target #14: I can identify the domain and range of a function from a table or set of data points.
Homework is at