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Is it a function or not? Mapping & Graphs

Authored by Tonia Durham

Mathematics

8th Grade

25 Questions

Used 1+ times

Is it a function or not? Mapping & Graphs
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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

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.

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Is this mapping a function or not a function?

Function

Not a Function

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Function

Not a Function

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Does the mapping diagram represent a function?

Yes

No

Answer explanation

Each possibly x-value (domain) corresponds to exactly one y-value (range).

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which representation is NOT a function?

A) Table

B) Graph

C) Set

D) Mapping diagram

Answer explanation

The x-coordinate 1 corresponds to both -2 and -9.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which representation is NOT a function?

F) Mapping Diagram

G) Mapping Diagram

H) Table

J) Table

Answer explanation

The x-value 3 corresponds to both 2 and 3.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which representation IS a function?

A) Mapping Diagram

B) Mapping Diagram

C) Table

D) Table

Answer explanation

B is the only representation that shows each input corresponds to exactly one output.

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