Explore Proportional Relationships in Real-World Contexts

Front

The table shows how much a store charges for certain numbers of pencils. Based on the table, which equation could be used to calculate the cost, c, of any number of pencils, p?

Back

c = 0.18p

Front

According to this graph, how fast is the train moving in miles per hour? (look for 1 hour)

Back

150

Front

The graph shows a proportional relationship between time and the total cost of a taxi ride. Which expression can be used to find the unit rate, in dollars, for a one-minute ride in a taxi? Hint: What ratio do we use for the unit rate?

Back

9 divided by 6

Front

What is the meaning of the point (1,2) in terms of the context of a dry cleaning service's costs for cleaning shirts?

Back

The dry cleaning service charges $2 per shirt.

Front

The graph shows the number of inches of snow over the course of time. Which statement is NOT correct about the relationship shown in the graph?

Back

The coordinate (2,1) indicates that it has snowed 2 inches in 1 hour.

Front

Using the data in the table, what is the constant of proportionality (k) that can be used to find the total cost, C, for n gallons of this type of gasoline?

Back

4

Front

Point M represents 3 miles per hour in the graph shown. What does Point N represent?

Back

a distance of 9 miles per 3 hours

Front

What does Point J represent on the graph modeling a hummingbird flying 5.0 meters every second?

Back

The hummingbird flies a distance of 30 meters every 6 seconds.

Front

The graph shows the cost of bananas at a supermarket based on the weight of the bananas in pounds. What is the cost of one pound of bananas?

Back

$2.50

Front

The number of laps Peter completes on a running track is proportional to the time he takes in minutes. This relationship is graphed. Write the ordered pair that indicates the unit rate in terms of minutes per lap.

Back

1,3