Identifying Proportional Relationships

Why does this graph show a non-proportional relationship?

• It doesn't, it is proportional because it is a straight line
• It goes through the origin
• It does not go through the origin
• It is a straight line

Is the graph proportional or non proportional?

• Proportional
• Non-Proportional

Which graph is non-proportional?

• A
• B
• C
• D

Is the graph proportional or non proportional?

• Proportional because it is a straight line and passes through the origin (0,0).
• Non-Proportional because it doesn't pass through the origin (0,0).

Which statement best describes the relationship of x and y in the table?

• Proportional
• Not Proportional

What are the main characteristics of a proportional relationship between two variables?

• They pass through the origin.
• They are linear (straight line) and also pass through the origin.
• They are curved
• The x to y ratio is a constant of proportionality.

Does the graph show a proportional relationship?

• Yes
• No

Is the graph proportional or non proportional?

• proportional
• non proportional

Is the graph proportional or non proportional?

• proportional
• non proportional

Which of these could be a constant of proportionality.

• 20
• 40
• 2
• 80