Constant of Proportionality Review Equations Tables and Graphs

The table shows how much a store charges for a certain number of bananas. Which equation could be used to find cost, c, of any number of bananas, b?

• c = $0.09b

• c = $0.19b

• c = $0.38b

• c = $0.57b

Use the table to write an equation that relates lunch cost L and number of riders n.

• L = $0.50n

• L = $4.00n

• L = $6.00n

• L = $8.00n

k represents

• the constant of proportionality

• the king

• ketchup

• a strikeout

Select ALL equations that are proportional.

• y = 3x

• y = 25x

• y = 7x

• y = 2x - 1

• y = 4000x

The constant of proportionality can be found by finding the __________  _____________.

• unit rate

• ratio rate

• proportion answer

• rational number

The constant of proportionality in the equation y = ½x is _______.

• x

• y

• 2

The constant of proportionality is also the unit rate.

• True

• False

Which statement below accurately represents the graph?

• $100 is earned for each hour worked

• $200 earned for every 2 hours worked
  is the unit rate

• $500 is earned for every 8 hours worked

• $300 is earned after working 4 hours

Which table shows a proportional relationship between the distances on a map and the actual distances?

• 
• 
• 
• 

According to the graph above, 4 pounds of bananas costs $100.

• True

• False