Function/Not a Function

A function is when each x value has

• one y value.

• unlimited y values.

Tags

CCSS.8.F.A.1

Look at this ordered pair: (3,8)

Which number is the x value?

• 3

• 8

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

The following set of ordered pairs IS a function:

{(2,3) (6,1) (0,3) (4, 2)}.

How do you know?

• None of the x values repeat.

• None of the y values repeat.

Tags

CCSS.8.F.A.1

Function or not a function?

{(0,3) (2,3) (4,3) (10,3)}

• Function

• Not a function

Tags

CCSS.8.F.A.1

Function or not a function?

{(-2,3) (-4,8) (3, 1) (-2,9)}

• Function

• Not a function

Tags

CCSS.8.F.A.1

Ordered pairs can still be a function if an x-value repeats but ONLY when:

• the y values also repeat

• the y values are different

Tags

CCSS.8.F.A.1

Function or not a function?

{(0, 3) (3,7) (-12, 3) (0,3)}

• Function

• Not a function

Tags

CCSS.8.F.A.1

What is the ordered pair for point B?

• (3, 2)

• (-3, -2)

• (-3, 2)

• (2, -3)

Tags

CCSS.5.G.A.1

CCSS.5.G.A.2

Function or not a function?

• Function

• Not a function

Tags

CCSS.8.F.A.1

Function or not a function?

• Function

• Not a function

Tags

CCSS.8.F.A.1