Proportionality in Graphs

What is a proportional relationship?

• A relationship between two quantities where the rate of change is unpredictable

• A relationship between two quantities where they increase or decrease at the same rate

• A relationship between two quantities where one always increases while the other decreases

• A relationship between two quantities where they increase at different rates

Tags

CCSS.7.RP.A.2D

If y is directly proportional to x, and y = 10 when x = 5, what is the constant of proportionality?

• 2

• 5

• 8

• 12

Tags

CCSS.7.RP.A.2B

In a proportional relationship, if x = 3 and y = 15, what is the value of y when x = 6?

• 20

• 30

• 25

• 10

Tags

CCSS.7.RP.A.2B

If the constant of proportionality is 4, and x = 8, what is the value of y in the proportional relationship y = kx?

• 12

• 16

• 20

• 32

Tags

CCSS.7.RP.A.2B

What is the equation of a proportional relationship between x and y if the constant of proportionality is 3?

• y = 3x

• y = x + 3

• y = 2x

• y = 3 + x

Tags

CCSS.7.RP.A.2C

In a proportional relationship, if y = 12 when x = 4, what is the value of y when x = 10?

• 30

• 20

• 15

• 25

Tags

CCSS.7.RP.A.2B

If y is directly proportional to x, and y = 25 when x = 5, what is the constant of proportionality?

• 20

• 10

• 5

• 15

Tags

CCSS.7.RP.A.2B

In a proportional relationship, if x = 6 and y = 18, what is the value of y when x = 9?

• 12

• 15

• 20

• 27

Tags

CCSS.7.RP.A.2B

If the constant of proportionality is 7, and x = 10, what is the value of y in the proportional relationship y = kx?

• 70

• 100

• 50

• 17

Tags

CCSS.7.RP.A.2B

What is the equation of a proportional relationship between x and y if the constant of proportionality is 5?

• y = 5 / x

• y = 5 + x

• y = x + 5

• y = 5x

Tags

CCSS.7.RP.A.2C