Ratios, Rates, and Proportional Relationships

What makes a graph proportional? SELECT ALL THE APPLY

• Has to be a straight line.

• As long as there is some kind of line, it is proportional.

• Has to cross through the origin (0, 0).

• Has to start from the negative side and move up to the positive side.

Tags

CCSS.7.RP.A.2D

Is the relationship of this graph proportional or non-proportional?

(a)  

Tags

CCSS.7.RP.A.2D

Which of the following statements is true? SELECT ALL THAT APPLY

• The constant is $10 for every 1 picture.

• This is not a proportional relationship.

• This has a direct variation between pictures taken and the cost.

• There is no constant in this graph.

• There is no direct variation in this graph.

Tags

CCSS.7.RP.A.2D

What is the constant of proportionality?

y = 14x

(a)  

Tags

CCSS.7.RP.A.2B

What is the constant of proportionality?

9y = 72x

(a)  

Tags

CCSS.7.RP.A.2B

The cost to order a pizza online is $5 per pizza plus a $3 delivery fee. That means that it will cost $8 to get 1 pizza delivered, $13 to get 2 pizzas delivered, and $18 to get 3 pizzas delivered. Does this show a proportional relationship?

• Yes

• No

Tags

CCSS.7.RP.A.2A

Which of the following equations demonstrate a proportional relationship? Select all that apply.

• y = x

• y = 2x + 9

• y = -5x

• y = -3x - 8

Tags

CCSS.7.RP.A.2D

Is the given table a proportional relationship? If so, what is the constant of proportionality?

• Yes; 1/3

• Yes; 3

• Yes; 5

• No

Tags

CCSS.7.RP.A.2B

What is the value of n in the following proportion

(a)  

Tags

CCSS.7.RP.A.2C

Tori bought some butterfly feeders, and she needs to fill them before she puts them in her garden. She finds a recipe online for a sugar water mixture that will attract butterflies. The recipe says to mix 1 ounce of sugar with 9 ounces of water. Tori decides to make one large batch so she can fill all her feeders at once. In a pot, she mixes 4 ounces of sugar with 36 ounces of water. Which mixture is sweeter?

• The recipe is sweeter.

• Tori's mixture is sweeter.

• They are the same sweetness.

Tags

CCSS.6.RP.A.3A