Introduction to Functions

Which of these graphs represents a function?

• Z

• W

• X

• Y

Which of these tables represents a function?

• W

• Y

• Z

• X

Tags

CCSS.8.F.A.1

Using the vertical line test, determine if the graph above shows a relation, a function, both a relation and a function, or neither a relation or a function.

• Neither a relation or a function

• Relation only

• Both a relation and a function

• Function only

Which of the following relations describes a function?

• D

• A

• B

• C

Tags

CCSS.8.F.A.1

Which relation diagram represents a function?

• W

• X

• Y

• Z

Tags

CCSS.8.F.A.1

What is the definition of function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

All of the x values or inputs are called what?

• Domain
• Range
• Relation
• Function

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

All of the y values or outputs are called what?

• Domain

• Range

• Relation

• Function

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

If my function rule is y=x + 3, what is the OUTPUT if the input is 4?

• 4

• 3

• 7

• 10

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

For the function y=x+1 what is the range if the domain is 0,1,2

• 0,1,2

• 1,2,3

• 2,4,6

• 1,1,2