Proportional Relationships Using Tables and Graphs

Is the given table a proportional relationship? If so, what is the constant?

• Yes; 1/3

• Yes; 3

• Yes; 5

• No

What is the constant of proportionality for the following graph?

• 80

• 20

• 40

• 160

Mr. Diaz changed his shower head to conserve water and energy. The table shows the relationship between the amount of flow and the duration of the water flow.

Which statement BEST describes the rate of water flow?

• 0.4 gallons per minute

• 2.1 gallons per minute

• 2.5 gallons per minute

• 3.0 gallons per minute

The graph shows the cost of grapes when purchased by the pound.

What is the cost for 1 pound of grapes?

• $0.70

• $1.25

• $1.40

• $1.50

A graph shows a straight line that passes through the points (0,0) and (5,15). What is the equation of the line that represents this proportional relationship?

Which graph represents a proportional relationship between x and y?

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• 
• 

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

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According to the graph, what would be the cost of one ticket?

• $25

• $35

• $50

• $60

Using the data in the table above, how much does 1 gallon of gas cost?

• $3.50

• $4.00

• $4.50

• $5.00

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

• $200 is earned after working 3 hours