Proportional vs Nonproportional Relationships Graphs

What makes a graph proportional?

• Straight Line

• The line goes through (0,0)

• Curvy line

• Straight line and passes through (0,0)

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

Is the graph proportional or non proportional?

• proportional

• non proportional

Which best describes the equation?
y = 75x

• Proportional

• Nonproportional

Does the equation show a proportional relationship?

• Yes

• No

In the equation y = 14x, what is the constant of proportionality?

• y

• x

• 14

• y=14

What is the equation y=kx for the table?

• y=1/3x

• y=3x

• y=5x

• y=1/5x

Select all graphs that represent proportional relationships.

• 
• 

What is the unit rate/constant of proportionality?

• 80 miles in 1 hours

• 20 miles in 1 hours

• 40 miles in 1 hours

• 160 miles in 1 hours

Which graph is non-proportional?

• A

• B

• C

• D