Direct Variation Test

Which of the given graphs is a direct variation?

• A

• B

• C

• D

Does the relationship represent direct variation?

• Yes

• No

What does the point (2,4) represent?

• They get 2 cm of rain in 4 hours

• In 2 hours it rains 4 cm

• ¹/₂ cm per hour

• 1/2 hour per 1 cm of rain

Tags

CCSS.HSF.IF.B.4

Write an equation for this relationship.

• y=4x

• y=1/8x

• y=1/4x

• y=8x

Tags

CCSS.6.EE.C.9

Is this a direct variation?
y=2x

• yes

• no

Does the following represents direct variation?

• Yes

• No

Does the following represents direct variation?

• Yes

• No

Tags

TEKS.MATH.8.5E

Does the following represents direct variation?

• Yes

• No

What is the constant of proportionality?

• 1

• 2

• 3

• 4

Tags

CCSS.7.RP.A.2B

y varies directly as x ,If y = 21, when x = 7, find y when x = 28.

• 14

• 48

• 84

• 7