Constant vs Varying Constant of Proportionality

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

• 33

• y = 1/3x

• y = 33x

• y = 33

k represents

• the constant of proportionality

• the king

• ketchup

• a strikeout

Which equation matches the constant of proportionality?

• x = y

• y = x

• y = kx

• l x w

Select ALL equations that are proportional.

• y = 3x

• y = 25x

• y = 7x

• y = 2x - 1

• y = 4000x

The constant of proportionality is also the unit rate.

• True

• False

What is the constant of proportionality for this table?

• $1/9 per hour

• $9 per hour

• $8 per hour

What is the direct variation?

• y=9/3x

• y=6x

• y=9x

• y=3x

Identify the constant of proportionality.

• k = 1/0.45

• k = 0.45

• k = -0.45

• k = -1/0.45

• none (not proportional)

Which graph is proportional?

• A

• B

• C and D

• All of the graphs are proportional

What is the constant of proportionality?

• $3

• $2

• $4

• $9