Recognizing Direct Proportions from a Table

Does this table represent a Direct Proportion? If so, what is the Constant of Proportionality?

• No it is not a direct proportion.

• Yes and the Constant of Proportionality is 1/5

• Yes and the Constant of proportionality is 5

Tags

CCSS.7.RP.A.2B

Does this table represent a direct proportion? If so what is the Constant of Proportionality?

• Yes and the Constant is 2

• No

• Yes and the Constant is 1/2

Tags

CCSS.7.RP.A.2B

Which of the  tables represent a direct proportion?

• A

• B

• C

• D

Tags

CCSS.7.RP.A.2B

How do you determine if a table represents a direct proportion?

• You check a few of the ratios of y/x or output/input to see if they are equal.

• You see if the ratios of input/output or x/y are equal

• You see if they all look to be the same and take a guess.

• You check ALL of the ratios of y/x or output/input and make sure that they are equivalent to the same number.

Tags

CCSS.7.RP.A.2A

The calories are directly proportional to the amount of chocolate bars. How many calories are in each Chocolate bar? (the constant)

• 100

• 202

• 0

• 3,636

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.EE.C.9

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

The values of y/x are proportional. Find the missing values. (in order from left to right)

• 5, 8, 12

• 100, 160, 240

• 9,24, 44

Does the table represent a Direct Proportion? If so, Identify the Constant of Proportionality (y/x).

• No it is not a direct proportion.

• Yes. The constant is 2.

• Yes. The constant is 8.

• Yes. The constant is 1/2.

Tags

CCSS.7.RP.A.2B