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Week 3 (8th)

Authored by Charlotte Ingram

Mathematics

8th Grade

Week 3 (8th)
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13 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 10 pts

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Does this mapping diagram represent a function?

No, because an input value goes to multiple output values
Yes, because each input goes to one and only one output

2.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

What is the definition of a function?

Has inputs and outputs

Inputs have different outputs every time

x-values and

y-values

Every input has only one output

3.

MULTIPLE CHOICE QUESTION

3 mins • 10 pts

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.

4.

MULTIPLE SELECT QUESTION

1 min • 10 pts

Which of the graphs are examples of functions?

Media Image
Media Image
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5.

MULTIPLE CHOICE QUESTION

1 min • 10 pts

Media Image

Does the table represent a function?

Yes

No

6.

MULTIPLE SELECT QUESTION

45 sec • 10 pts

Which set of ordered pairs is not a function? (select all that apply)

{(9, 5), (10, 5), (-9, 5), (-10, -5)}

{(3, 4), (4, -3), (7, 4), (-3, 4)}

{(6, -5), (7, -3), (6, -1), (9, 1)}

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

7.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

How do you use the vertical line test?

Draw vertical lines through your graph. If any of the vertical lines you draw intersects the graph more than once then the graph is not the graph of a function.

Draw vertical lines through your graph. If any of the vertical lines you draw intersects the graph more than once, then it is a function.

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