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 www.MsHurleyMath.com

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 www.MsHurleyMath.com

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 www.MsHurleyMath.com