Direct Variation Note

Is this the graph of a direct variation?

• Yes

• No

Is this the graph of a direct variation?

• Yes

• No

Does this represent a direct variation?

• Yes

• No

Does the relationship represent direct variation?

• Yes

• No

Which of the given graphs is a direct variation?

• A

• B

• C

• D

Which is an example of direct variation?

• xy = 10

• y = 5x

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

• Yes; 1/4

• Yes; 4

• Yes; 2

• No

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

• 26

• 3

• 58.5

• 2

If y vaires directly with x and y= 12 when x= 15. What is the value of x when y= 16?

• 12.8

• 20

• 11.25

• 19

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