Week 18~Math Bridges (Proportional Relationships)

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

Find the constant of proportionality in the graph below.

• 9

• 4

• 3

• 1.5

Tags

CCSS.7.RP.A.2

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

• 4 acres

• 8 acres

• 2 acres

Tags

CCSS.7.RP.A.1

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 shows the relationship between x-values and y-values. Which of the following statements is true?

• The constant of proportionality is 5.

• The y-intercept is 20.

• This is an example of a non-proportional relationship.

• The rate of change is 7.5.

Tags

CCSS.7.RP.A.2

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

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

• 1 cup

• 2 cups

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Using the images and answer choices on your math bridges sheet, which does NOT represent the number of months in a year?

• Graph showing months vs. years

• Table showing years and months

• y = 12x, where x represents the number of years and y represents the number of months

• There are 96 months in 8 years.

Tags

CCSS.7.RP.A.2