Proportional vs Nonproportional Tables and Graphs

Which statement best describes the relationship between x (dogs) and y(paws) in the table?

• Proportional

• Not Proportional

What makes a graph proportional?

• Straight Line

• The line goes through (0,0)

• Curvy line

• Straight line and passes through (0,0)

Is this table proportional?

• Yes

• No

The cost of popcorn is $2.50 for each bag.

• Proportional

• Nonproportional

Which of the following best represents a linear proportional relationships?

• 
• 

Does this graph represent a proportional relationship?  

• No, because it doesn't pass through the origin.

• Yes, because it doesn't pass through the origin.

• Yes, because it intersects the y axis.

• No, because it intersects the x axis.

Shawn makes $7.50 an hour to babysit for her next door neighbors.  Describe the graph of this relationship.

• Proportional

• Non-proportional

Write an equation for this situation.

• y=9.75x

• y=19x

• y=19.25x

• y=9.5x

Does this graph represent a proportional relationship?

• Yes, because the line is pretty.

• No, because the line goes through the origin.

• Yes because the line goes through the origin.

• No, because the graph is non-proportional.

Determine if the data is proportional or nonproportional. 

• Proportional

• Nonproportional

• Neither