Direct Variation

Identify which equations show direct variation and which do not.

Groups:

(a) Direct Variation

,

(b) Not Direct Variation

The graph of a direct varation equation will always pass through the origin. ​ (a)  

• true

• false

Tags

CCSS.8.EE.B.5

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

• constant of equality

• constant of proportionality

• constant of non-proportionality

Tags

CCSS.HSF-LE.A.1B

Does the graph show a direct variation?

• Yes

• No

n varies directly with c. If c = 24 when n = 18, what is c when n = 22?

• 88/3

• 28

• 66/4

• 24

Y varies directly as x. If y = 12 when x = 15, what is y when x = 20?

• 4/5

• 17

• 16

• 25

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