P.O.D.

Write an equation for this relationship.

• y=1/5x
• y=1/2x
• y=2x
• y=5x

Write an equation for this situation.

• y=9.75x
• y=19x
• y=19.25x
• y=9.5x

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

• Proportional
• Not Proportional

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

Which graph is proportional?

• A
• B
• C and D
• All of the graphs are proportional

 Is this table proportional or non-proportional?

• Proportional because the y to x ratio is a constant of proportionality. 
• Non-Proportional because the y to x ratio is not a constant of proportionality. 
• Proportional because the x to y ratio is a constant of proportionality.
• Non-Proportional because the x to y ratio is not a constant of proportionality.

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).

A line is linear if it forms a straight line.  A line that does not form a straight line is non-linear. Which best describes this graph?

• linear and non-proportional
• non-linear and non-proportional
• linear and proportional
• non-linear and proportional

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

• Proportional, because the y to x ratio is constant.
• Not Proportional because the y to x ratio isn't constant.
• Proportional because the x to y ratio is constant.
• Not Proportional because x to y ratio isn't constant.