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Direct Variation Missing Value

Authored by Barbara White

Mathematics

7th - 9th Grade

CCSS covered

Direct Variation Missing Value
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20 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 y varies directly with x, and y is 84 when x is 16. What is the constant of proportionality?

y = (21/4)x
k= 21
k= 5.25
k= 4/21

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

Write an equation for this relationship.

y=4x
y=1/8x
y=1/4x
y=8x

Tags

CCSS.6.EE.C.9

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The amount of money earned on a job is directly proportional to the number of hours worked.  If $70.00 is earned in 5 hours, how much money is earned in 22 hours of work?

$2
$308
$1.57
$265

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

Is the given table a direct variation? If so, what is the constant?

Yes; 1/4
Yes; 4
Yes; 2
No

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

In a direct variation, y=39 when x=3.  Find the value of y when x=2.

26
3
58.5
2

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Is this a direct variation?
y=2x

yes
no

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

Does the relationship represent direct variation?

Yes
No

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