Connecting Proportional Relationships Equations Graphs Tables

Does this graph represent a proportional relationship?

• Yes

• No

Determine if the table above is proportional and how do you know?

• The table is proportional because the unit rate is a constant 0.33.

• The table is proportional because it passes through the origin.

• The table is proportional because the unit rate is a constant 0.28

• The table is not proportional because the unit rate is not constant.

Which graph is non-proportional?

• A

• B

• C

• D

Which of the following rates of change represents the graph shown?

• 2 boys for every 1 girl

• 0.5 boys for every 1 girl

• 6 boys for every 1 girl

• 3 boys for every 1 girl

What is the formula for a proportional relationship?

• y=kx

• y=k/x

• z=ykx

• y=ky

Which graph matches the table?

• A

• B

• C

• D

Does the following table represent a proportional relationship? If so identify the constant of proportional and create an equation to represent it.

• Proportional; k = 1/40 pages per day; y=1/40x

• Proportional; k = 40 pages per day; y=40x

• Not Proportional

• Proportional; k = 40 days per pages; y=40x

Does the following table represent a proportional relationship? If so, identify the constant of proportionality and create an equation to represent it.

• Proportional; k=8; y=8x

• Not Proportional

• Proportional; k = -8; y=-8x

• Proportional; k=1/8; y=1/8x

What is the constant of proportionality?

• k = 15 gallons of water per minute

• k = 1/15 gallons of water per minute

• k = 15 minutes per gallon of water

• k = 1/15 minute per gallons of water

What makes a graph proportional?

• It is a straight line.

• It goes through the origin.

• It does not go through the origin.

• If it goes down instead of up.