Constant of Proportionality

Identify the constant of proportionality.

• k = 1/0.45

• k = 0.45

• k = -0.45

• k = -1/0.45

• none (not proportional)

Write the equation for the table given.

• y = 16x

• y=8x

• y=12x

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

Identify the constant of proportionality.

• k = 2

• k = 4

• k = 1/2

• k = 1/4

• none (not proportional)

Which of the tables above represents a proportional relationship?

• a & c

• a, b & c

• a, c & d

• all of them

Which graph is proportional?

• A

• B

• C and D

• All of the graphs are proportional

What is the constant of proportionality for this table?

• 1/9

• 9

• 8

What is the constant of proportionality? 

• 45 mph

• 90 mph

• 135 mph

• 2 mph

What is the constant of proportionality? (Unit rate)

• 2 swings / 1 day

• 0.5 swings / 1 day

• 4 swings / 1 day

• None of the above