Constant of Proportionality Using Tables

The table of values represents a proportional relationship. What is the input value (x), when the output value (y) is 35?

• 8

• 10

• 14

• 122.5

Martha sells flowers and uses the table to help her figure out the cost of larger orders. How much would she charge for 4 dozen flowers?

• $2.40

• $7.20

• $28.80

• $172.80

Using the data from the table, which equation represents the relationship between x and y values?

• y = 33 + x

• y = 24 + x

• y = 12x

• y = -12x

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

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

• 
• 
• 
• 

Albert wants to buy some pens. He compares 4 different packs of pens. Which two packs of pens have the same cost per pen?

• Packs 1 and 2

• Packs 1 and 3

• Packs 2 and 4

• Packs 1 and 4

Thomas' printer can print 225 sheets of paper in 5 minutes. What is the constant of proportionality for the number of sheets printed per minute?

What makes a TABLE proportional?

• linear

• constant rate

• goes through the origin

• the numbers all line up

Freddie used 45 pencils during the first 15 days of school. What is the constant of proportionality for the number of pencils he used each day?

What is the constant of proportionality?

• $3

• No COP

• $2

• $9