Proportional Relationships through Tables, Graphs, & Equations

Describe one method you can use to determine if a relationship is proportional?

• Constant Rate of Change

• Direct Variation

• Neither

Tags

CCSS.7.RP.A.2D

Does the following table represent a proportional relationship? Explain why or why not.

• No, it does not have a constant variation or a constant rate of change.

• Yes, it does have a constant variation and a constant rate of change, and it is 0.6

Tags

CCSS.7.RP.A.2D

Does the following table represent a proportional relationship? Explain why or why not.



• Yes, it is because it has a constant rate of change of .6

• No, it does not have a constant rate of change.

• Yes, it is because it has a constant rate of change of .8

• No, it does not have a constant variation.

Tags

CCSS.7.RP.A.2D

Does the following table represent a proportional relationship? Explain why or why not.

• No, it does not.

• Yes, it is because it has a constant rate of change of 3.

• Maybe because there is a constant rate of change of 3.5, but there is no constant variation.

• Yes, it is because it has a constant rate of change of 3.5.

Tags

CCSS.7.RP.A.2A

Determine the constant of proportionality in the following table and the value of x

• Constant of Proportionality = 6, x = $\frac{Y}{6}$

• Constant of Proportionality = $\frac{1}{6}$ , x = $\frac{6}{Y}$

• Constant of Proportionality = $\frac{12}{2}$ , x = 6y

• Constant of Proportionality = 6, x = - $\frac{Y}{6}$

Tags

CCSS.7.RP.A.2B

What does the point (60, 90) represent in the following graph?

• At 60 patient payments, you will have 90 insurance payments.

• At 60 insurance payments, you will have 90 patient payments.

• At 90 insurance payments, you will have 60 patient payments.

Tags

CCSS.7.RP.A.2D

What does the point (2, 8) represent in the following graph?

• At the height of 8 feet, the candle will burn in 2 hours.

• In 2 hours, the candle will reach a height of 8 feet.

• In 8 feet, the candle will reach a height of 2 hours.

Tags

CCSS.7.RP.A.2D

In the following graph, what is the constant rate of change?

Tags

CCSS.7.RP.A.2D

Does the following equation represent a direct variation? Explain why or why not.

y = 5 + x

• Yes, because you need to multiply k by x.

• No, because you need to multiply k by x.

• Yes, because you need to add k to x.

Tags

CCSS.7.RP.A.2C

Kelly gets paid $8.50 an hour working at Dunkin Donuts. Which direct variation equation could be used to determine how much Kelly makes for any number of hours.

• y = 8.50 + k

• y = 8.50k

• $y\ =\ \frac{8.50}{k}$
  

Tags

CCSS.7.RP.A.2C