Directly proportional relationship

Which statement best describes the relationship between x and y in the table?

• Proportional
• Not Proportional

Tags

CCSS.7.RP.A.2A

What is the constant of proportionality (in miles per hour) based on the table?

• 45
• 90
• 135
• 2

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

Is this table proportional?

• Yes
• No

Tags

CCSS.7.RP.A.2A

In the equation y = 14x, what is the constant of proportionality?

• y
• x
• 14

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

The number of words Maria typed varied directly with the amount of time she spent typing. If she typed 275 words in 5 minutes, how long would it take her to type 1,100 words? 

• 220 minutes
• 20 minutes
• 15 minutes
• 4 minutes 

Tags

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.EE.C.9

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound
• $5 per pound
• $35 per pound
• 0.125 pounds per dollar

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

Which representation shows a proportional relationship between x and y?

• 
• 
• 
• 

A grocery store sells sliced turkey. The graph shows the relationship between the weight of the sliced turkey and the total cost of the sliced turkey. Two points, R and W, are labeled on the graph shown below.

• Point R means that the unit rate is $10.00 per

  pound.

• Point R means that the unit rate is 4 pounds

  per dollar.

• Point W means that the unit rate is $2.50 per

  pound.

• Point W means that the unit rate is 2.5 pounds

  per dollar.

The cost of oranges in a grocery store is directly proportional to the number of oranges purchased. Jerri paid $2.52 for 6 oranges. If p represents the cost, in dollars, and n represents the number of oranges purchased, which equation best represents this relationship?

• p=0.42n

• p=2.52n

• p=6n

• p=15.12n

The graph shows the total distance, in miles, traveled by a towboat over time, in hours .

Which statement best describes the meaning of the coordinates of point F on the graph?

• It shows the unit rate of the graph in hours per mile.

• It shows the unit rate of the graph in miles per hour.

• It shows the time, in hours, it takes the

  towboat to travel 1 mile

• It shows the distance traveled, in miles, by

  the towboat after 5.25 hours.