Intro to Functions

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

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

• No, because each x-value has only one y-value paired with it.

Tags

CCSS.8.F.A.1

Is this graph a function or not a function? 

• Function

• Not a Function

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)

Tags

CCSS.8.F.A.1

Does this table represent a function?

• Yes 

• No

Tags

CCSS.8.F.A.1

Which of the following represents a function?

Tags

CCSS.8.F.A.1

A function is where each ​ (a)   corresponds to exactly one ​ (b)   .

• x-value

• y-value

Tags

8.5.G

A function is a type of rule in which each ​ (a)   results in exactly one ​ (b)   .​

• input

• output

• linear

• nonlinear

• straight line

Tags

CCSS.8.F.A.1

• A line with a positive slope that crosses the y-axis at 3

• A line with a negative slope that crosses the y-axis at 3

• A line with a positive slope that crosses the y-axis at -3

• A line with a negative slope that crosses the y-axis at -3

Is this table a function or not a function? 

• Function

• Not a Function 

Tags

CCSS.8.F.A.1

Is this mapping a function or not a function? 

• Function

• Not a Function 

Tags

CCSS.8.F.A.1