Math Proportional Relationships

Find the constant of proportionality in the graph below.

• 9

• 4

• 3

• 1.5

Tags

CCSS.7.RP.A.2

An app developer projects that he will earn $230.00 for every 100 apps downloaded. Which of the following equations can be used to represent the proportional relationship between the number of apps, x, and the total earnings, y?

• y = 100x + 230

• y = 230x + 100

• x = 2.30y

• y = 2.30x

Tags

CCSS.7.RP.A.2

The table below shows the relationship between the number of miles traveled, x, and the gallons of gas used, y. Which of the following equations best represents the relationship?

• y = 35x

• y = (1/35)x

• 35 = 1x

• y = 3.5x

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2

Which situation is best described by the graph shown?

• JJ purchases chips for $0.75 per bag.

• Mark buys packs of gum for $1.50 each.

• Paula pays $0.50 per ticket at the fair.

• Franco purchases flowers for $3.00 each.

Tags

CCSS.7.RP.A.1

Two quantities are in a ​ (a)   if the two quantities vary and have a constant ratio between them.

• proportional relationship

• proportional

• unit rate

• nonproportional

• constant of proportionality

Two quantities are ​ (a)   if the ratios comparing them are equivalent.

• proportional

• nonproportional

• constant of proportionality

• proportion

When two ratios are equal they are .

(a)  

• Proportional

• Ratio

• Rate

• Unit Rate

As the x-value increases by 20, the y-value increases by 10. Which of the following equations represents the relationship between the x and y-values?

• y = 2x

• y = x + 10

• y = 0.5x

• y = 10x

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

The graph below shows the relationship between Sarah's savings account balance and the number of weeks that have passed. Which of the following statements is NOT true about the relationship?

• After 5 weeks, Sarah has $100 in her account.

• If Sarah has a balance of $60, then 7 weeks have passed.

• The relationship is proportional.

• The situation can be represented by the equation y = 200 – 20x.

Tags

CCSS.7.EE.B.4

CCSS.7.RP.A.2

• 1 cup

• 2 cups

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3