COP Proportional Relationships Quiz

Does the following table represent a proportional relationship? Justify your answer.

• Yes. x-values are constantly increasing, y-values increase by different amounts.

• Yes, there is a constant of 3.5

• No, the x-values do not increase by consistent amounts

• No, you can only use a graph to determine proportionality

Tags

CCSS.7.RP.A.2A

Find the constant in the table

• K = 0.83

• K = 1.2

• K = 19.2

• K = 1

Tags

CCSS.7.RP.A.2B

What point on the graph represents the unit rate?

• (0,0)

• (7.5, 1)

• (1, 7.5)

• (1, 1)

Tags

CCSS.7.RP.A.2D

What does the point (4, 3) represent on the graph?

• It is the origin

• It is the unit rate

• 3 cups of water are needed for 4 cups of uncooked rice

• 4cups of water are needed for 3 cups of uncooked rice

Tags

CCSS.7.RP.A.2D

Cars are being parked in rows at a car show. The same number of cars is parked in each row. If there are 450 cars in 15 rows, write an equation that could be used to determine y, the total number of cars in x rows.

• y = 30x

• y = 15 x

• y = 0.3x

• y = 450x

Tags

CCSS.7.RP.A.2C

A bag of oranges weighing 5 pounds costs $15.00. A bag of oranges weighing 8 pounds costs $24.00. Which equation represents the relationship between the total cost C, and the weight of the oranges in pounds w?

• C = 5w

• C = 3w

• C = 4.8w

• C = 15w

Tags

CCSS.7.RP.A.2C

Determine the constant of proportionality from the ordered pairs: (1/2, 4), (1,8), (2,16), (3, 24)

• K = 2

• K = 4

• K = 0.125

• K = 8

Tags

CCSS.7.RP.A.2B

Ethan says the constant in the equation 4y = 12x is 12. Addison says the constant of proportionality is 3. Who is correct?

• Ethan

• Addison

• Neither are correct

• The constant cannot be determined

Tags

CCSS.7.RP.A.2B

Sunny Orchards charges for fruit by weight. The table shows prices for apples, and the graph shows prices for pears. What is the difference in price per pound?

Tags

CCSS.7.RP.A.2D

Which the graph(s) do NOT show a proportional relationship.

• Graph a

• Graph b

• Graph c

• Graph d

Tags

CCSS.7.RP.A.2D