Direct Variation Ordered Pairs

Create the graph of the direct variation shown.

Is the relationship in the table a direct variation?

• Yes

• No

Determine if there is a constant of proportionality, k.

If there is a k, what is it?

• There is no k

• k = 8

Does the graph show a direct variation?

• Yes

• No

Which of the given graphs is a direct variation?

• A

• B

• C

• D

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

• 26

• 3

• 58.5

• 2

The amount of money earned on a job is directly proportional to the number of hours worked. If $240 is earned in 16 hours, how much money is earned in a 40-hour work week?

• $480

• $600

• $15

• $265

What does "k" stand for in the direct variation equation?

• constant of equality

• constant of proportionality

• constant of non-proportionality

Does the given graph show a direct variation?

• Yes

• No