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Function, not a Function

Function, not a Function

Assessment

Presentation

Mathematics

9th Grade

Medium

CCSS
8.F.A.1

Standards-aligned

Created by

Lindsey Button

Used 221+ times

FREE Resource

8 Slides • 13 Questions

1

Relations (Function/Not a Function)

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2

In a Function, each input (x value) has EXACTLY ONE output (y value).

It is perfectly okay for different x values to go to the same y value. That can still count as a function!

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3

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​Each INPUT is listed ONLY one time in the table.

4

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​Each INPUT is listed ONLY one time in the table.

5

Multiple Choice

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Is this a FUNCTION?

1

YES

2

NO

6

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​FUNCTION

NOT a function

Each x value corresponds to only one y value

7

Multiple Choice

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Is this a FUNCTION?

1

YES

2

NO

8

Multiple Choice

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Is this mapping a function or not a function? 
1

Function

2

Not a Function

9

Multiple Choice

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Is the relation a function? Why.
1

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

2

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

3

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

4

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

10

Multiple Choice

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Is this set of ordered pairs a function and how can you tell?
1

Yes its a function because no y values repeat

2

No it's not a function because there are negative numbers

3

No it isn't a function because an x value repeats but has different y values 

4

No it isn't a function because an y value repeats but has different x values

11

Multiple Choice

Which set of values is a function?
1

(9,5) (10,5) (9,-5) (10,-5)

2

(3,4) (4,-3) (7,4) (3, 8)

3

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

4

(2, -2) (5, 9) (5, -7) (1, 4)

12

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Y values can repeat?!?!

YEP!

13

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​Vertical Line Test

​aka "pencil test"

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14

Multiple Choice

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Which does NOT pass the Vertical Line Test?

1

Graph 1

2

Graph 2

3

Graph 3

4

Graph 4

15

Multiple Choice

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Is this a function?

1

YES

2

NO

16

Multiple Choice

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Is this a FUNCTION?

1

YES

2

NO

17

Fill in the Blank

One test to see if a graph is a FUNCTION is the ________ Line Test, also known as the "Pencil Test."

18

Multiple Choice

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Which of these graphs IS a function?

1

A

2

B

3

C

4

D

19

Multiple Choice

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Which of these graphs IS a function?

1

A

2

B

3

C

4

D

20

Multiple Choice

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Which graph IS a function?

1

A

2

B

3

C

4

D

21

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Relations (Function/Not a Function)

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