Proportional Relationships

Which line shows a proportional relationship between x and y?

• Line L
• Line M

Which graph is non-proportional?

• A
• B
• C
• D

Is the graph proportional or non proportional?

• proportional
• non proportional

Which equation matches the graph?

• y = 8x
• y = 1x
• y = 3x
• y = 16x

What is the unit rate in this proportional relationship?

• 60 miles/1 hour
• 120 miles/ 2 hours
• 1 mile/ 1 hour

Why does this graph show a non-proportional relationship?

• Because it is proportional
• It goes through the origin
• It does not go through the origin
• It is a straight line

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.

The time in minutes it takes a sloth to move a certain distance in feet is shown in the graph above.  How far can a sloth move in 5 minutes?

• 1 foot
• 10 feet
• 20 feet
• 30 feet

Does the graph represent a proportional relationship?

• yes
• no