lesson 3-2 practice and problem solving: a/b bennis

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48

Understanding Relations and Functions Practice and Problem Solving: A/B

Express each relation as a table, as a graph, and as a mapping diagram. 1. {(−2, 5), (−1, 1), (3, 1), (−1, −2)}

x y

2. {(5, 3), (4, 3), (3, 3), (2, 3), (1, 3)}

x y

Give the domain and range of each relation. Tell whether the relation is a function. Explain. 3. 4. 5.

D: _____________________ D: ______________________ D: _____________________

R: _____________________ R: ______________________ R: _____________________

Function? ______________ Function? ______________ Function? ______________

Explain: ________________ Explain: ________________ Explain: ________________

________________________ _______________________ ________________________

________________________ _______________________ ________________________

________________________ _______________________ ________________________

x y

1 4

2 5

0 6

1 7

2 8

LESSON

3-2

BENNIS

2 SI

3 I2

5 343 o o o

g3

3 32 313

8 B 88 g 8 49 6 9 3

0,4 8 9 O l Z0,4 3 4 6 9 4 56 78Yes No NoNo is repeat The The

values repeat values repeat

Extra practice

Extrapractice

A a

i

All real numbers5Yes

8 2S 8Yes

TF estw

assign