4.1 Relations and Functions.notebook

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Domain-

Range-

Domain & Range

Determine the domain and range for each relation.1) {(0, 1), (9, 4), (23, 3)} 2)

3) 4) {(5, 2), ( ­2, 1), (6, 3)}

D=

R=D=

R=

D=

R=

D=

R=

4.1 Relations and Functions.notebook

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Functions-

{(­4, 4), (3, ­2), (5, ­1), (­4, 0)}3.

{(3,0), (4, 0), (5,0), (6,0)}2.

Examples: Which of the following represent functions? Explain your answer!

1.

4.8

4.1 Relations and Functions.notebook

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1)

3)

2)

4.1 Relations and Functions.notebook

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Let's talk about functions graphically...

vertical line test-

Does NOT pass the 

vertical line test

Passes the vertical line 

test

4.1 Relations and Functions.notebook

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December 07, 2018

Are these graphs functions? Explain why or why not.

4.1 Relations and Functions.notebook

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4.1 Relations and Functions.notebook

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EXIT TICKET*tear this page off and turn it in before you

leave class today*

Name: ___________________

Score: ____/6

4.1 Relations and Functions.notebook

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December 07, 2018

None of the examples below are functions. Explain why this is true, for each.