1 Pre-Alg2 Pre-Alg3 Pre-Alg 4 Pre-Alg5 Pre-Alg Pre-Alg Chapter 8.1 Is it a Function?

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Presentation transcript:

1 Pre-Alg2 Pre-Alg3 Pre-Alg 4 Pre-Alg5 Pre-Alg Pre-Alg Chapter 8.1 Is it a Function?

6 Pre-Alg7 Pre-Alg8 Pre-Alg Pre-Alg Chapter 8.1

Bell Work Jan 15 Graph each point A B C D Obj: I can describe and identify functions. Turn in to turn in box

Homework Key

38. B 39. J lb/in 2 41.a) 15, lb/in 2 b) 7, lb/in 2

Relations HomeroomNumber of students Cans Class Class Class Class Relate Number of Students to Cans

Relation A set of Ordered Pairs

Relations DOMAINRANGE x y

Function A relation in which EACH member of the DOMAIN is paired with EXACTLY one member of the RANGE

Functions Diet Pepsi 7-Up Domain Range

Functions Diet Pepsi 7-Up Domain Range

Functions Domain Range A relation in which EACH member of the DOMAIN is paired with EXACTLY one member of the RANGE

Functions Domain Range A relation in which EACH member of the DOMAIN is paired with EXACTLY one member of the RANGE

Functions Domain 1212 Range A relation in which EACH member of the DOMAIN is paired with EXACTLY one member of the RANGE

Functions Domain 1414 Range A relation in which EACH member of the DOMAIN is paired with EXACTLY one member of the RANGE

Functions Domain Range A relation in which EACH member of the DOMAIN is paired with EXACTLY one member of the RANGE

Is it a Function? Repeats in domain

Is it a Function? Repeats in domain

Second Method

EXIT TICKET Turn in to exit ticket folders Is it a Function? Explain how you know. {(-2, 5), (0, 5), (-1, 3), (-2, 7)}