Guest Constant of Proportionality

The constant of proportionality can be found by finding the __________  _____________.

• unit rate
• ratio rate
• proportion answer
• rational number

A proportional relationship can be written as an equation in the form ____ = _____  _____

• y = k+x
• y = k-x
• y = kx
• y = k/x

Identify the constant of proportionality.

• k = 2x

• k = 2

• k = 4

• none (not proportional)

Which equation helps you solve for k?

• k = x/y

• k = y/x

• k = y + x

• k = 2x

The constant of proportionality in the equation y = ½x is _______. 

• x
• y
• 1/2
• 2

If Justin ordered 5 ice cream bars for $12.25, how much was each ice cream bar?

• $2.45

• $4.00

• $7.25

• $1.25

What is the constant of proportionality?

• 5

• 1/5

• 10

• 2

What is the constant of proportionality?

• 3

• 10

• 30

• 1/10

A box of cereal cost $3.59 for 30 oz. How much is the unit rate per ounce? Round to the nearest cent.

• 11 cents

• 12 cents

• 13 cents

• 10 cents

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

• y = 33x

• y = 0.003x

• x = 33y

• 33k