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Functions. Algebra. Functions. Definitions Relation – a set of coordinate points (x, y) Domain – the x-values, input Range – the y-values, output Function – a relation where for every value of the domain the is exactly one value of the range. Functions. Domain (Student’s Name).

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Functions

Functions

Algebra


Functions1
Functions

Definitions

Relation – a set of coordinate points (x, y)

Domain – the x-values, input

Range – the y-values, output

Function – a relation where for every value of the domain the is exactly one value of the range


Functions2
Functions

Domain

(Student’s Name)

Range

( Student’s Grade)

A

B

C

Roscoe

Julia

Dan

Felicity

Lucas


Functions3
Functions

  • Graph the “grade” function

Grade

Student’s Name


Functions4
Functions

Domain

(gallons used)

Range

(miles traveled)

2

5

7

10

13

36

90

116

180

234


Functions5
Functions

  • Graph the “mileage” function

  • Write the equation that represents the data


Functions6
Functions

  • What does the graph of a function look like?

  • What does it NOT look like?

  • Give examples of graphs that are functions.

  • Give examples of graphs that are NOT functions.


Functions7
Functions

  • Vertical Line Test (VLT)

    • What is the definition if the VLT?

    • How and why is it used?


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