Functions Unit 3 Pre-test

Front

What are all of the x values or inputs called?

Back

Domain

Front

Which set of values is a function? (9,5) (10,5) (9,-5) (10,-5), (3,4) (4,-3) (7,4) (3, 8), (6,-5) (7, -3) (8, -1) (9, 1), (2, -2) (5, 9) (5, -7) (1, 4)

Back

(6,-5) (7, -3) (8, -1) (9, 1)

Front

Is the relation a function? Why?

Back

No, because the x-value 11 has two y-values pair with it.

Front

What is the Range?

Back

Front

A set of ordered pairs is called what?

Back

a relation

Front

What is a function?

Back

A relation where each input (x-value) has exactly one output (y-value).

Front

What is the Range of a function?

Back

The set of all possible output values (y-values) of a function.

Front

What is the difference between Domain and Range?

Back

Domain refers to the set of all possible input values (x-values), while Range refers to the set of all possible output values (y-values).

Front

What does it mean for a relation to be a function?

Back

Each input must correspond to exactly one output.

Front

What is an example of a non-function?

Back

The relation {(1,2), (1,3)} is not a function because the input 1 has two outputs.