Constant of Proportionality

Write an equation for this relationship.

• y = 18x

• y = 18.50x

• y = 22.50x

• y = 22x

What is the direct variation?

• y=9/3x

• y=6x

• y=9x

• y=3x

Which graph shows a proportional relationship?

• A

• B

• C

• D

What is k in this proportional relationship?

• 60 

• 120

• 1

• 180

What is the COP of this graph?

• 4/3

• 1

• 4

• 3/4

Determine the direction variation.

• y=1x

• y=4x

• y=8x

• y-2x

What is the equation for the graph?

• y=½x

• y=2x

• x=2y

• x=½y

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

Determine the constant of proportionality for the table. Express your answer as y = kx

• y = 1/2x

• x = 1/2y

• y = 2x

• k = x

Determine the constant of proportionality for the table. Express your answer as y = kx

• y = 33x

• y = 0.003x

• x = 33y

• 33k