Proportional Relationships and Unit Rate

Find k, the constant of proportionality.

• k = 4

• k = 6

Which table shows a proportional relationship between x and y?

• 
• 
• 

Write the equation for the table given

• y = 1/3x

• y = 3x

• y = 1/2x

What is the constant rate of change in the function y=5x?

• x

• 5

• 1

Which equation represents the line on the graph below?

• y = x + 7

• y = x - 7

• y = 7x

Which situation could represent a proportional relationship?

• The librarian received 30 new books in a 2-week time period and she already had 150 books.

• The customer bought 6 coffees for $36.

• The employee gets paid $38 for 4 hours and a bonus of $300.

• The customer paid for 1 pizza for $9.99 and $2.75 for the delivery.

Which situation would NOT represent a proportional relationship?

• The plumber charged Mrs. Rodriquez $225 for 3 hours of service.

• Alizabeth paid $465 for 3 Drake concert tickets.

• Corey paid $250 for 2 Texans tickets and $50 for a parking pass.

• The customer paid $43 for 20 gallons of gas.

Find the Unit Rate.
405 rotations in 5 minutes   

• 81 rotations per minute

• 73 rotations per minute

• 18 rotations per minute

• 810 rotations in 10 minutes

Find the Unit Rate.
72 ounces for 12 servings    

• 7 ounces per serving

• 144 ounces for 24 servings

• 6 ounces per serving

• 36 ounces for 6 servings

You travel 150 miles on 5 gallons. How far did you travel per gallon?

• 15 miles

• 30 miles

• 3 miles

• 25 miles