Proportions from Equations, Tables, and Graphs

Does this graph represent a proportional relationship?

• Yes
• No

Using the graph above, determine the constant of proportionality.

• k = 0
• k = 1
• k = 3
• k = 6

The graph above shows the price of games in dollars.  Is the graph proportional and how do you know?

• The graph is proportional  because it is linear.
• The graph is proportional because it is linear and passes through the origin.
• The graph is not proportional because it does not pass through the origin.
• The graph is not proportional because it is not linear and it does not pass through the origin.

How many tbsp of honey is needed for 20 cups of flour?

• 2

• 18

• 25

• 16

What does the point (2, 94) represent in this situation?

• Every week, they earn $94.
• After 94 weeks, they save $2.
• After 1 week, they save $47.
• After 2 weeks, they save $94.

Is this a proportional equation?  Why?

• It is not proportional because it doesn't have a constant.
• It is not proportional because it doesn't have a constant rate of change.
• It is proportional because if x = 0, y = 0.
• It is proportional because it has a y intercept of 22.

Which statement about this graph is most true?

• It is proportional
• The cleaner uses 1 cup of vinegar to every 2 cups of cleaner
• The cleaner uses 4 cups of cleaner to 2 cups of vinegar
• All of the above

Mason ran 3 miles in 20 minutes. What is his unit rate of miles per hour?

• 400 miles per hour
• 9 miles per hour
• 20 miles per hour
• 6.67 miles per hour

What ratio is equivalent to 4:5? Select all that apply.

• 8:10

• 20:25

• 5:6

• 1:5/4

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