Constant of Proportionality Do Now

Determine the missing value in the table.

• 15
• 3
• 1/3
• 9

Does this table represent a proportional relationship?

• Yes
• No

Which of the following shows the correct way to find the constant of proportionality using multiplication?

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• 

Which of the following examples shows one method of finding the constant of proportionality?

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• 
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• 

Which equation represents the constant of proportionality (relationship between the x and y values)?

• y=5x
• y=6x
• y=30x
• y=jfoiwuyr98q27r98 

What is the constant of proportionality? (Unit rate)

• 15 caramel chews / 1 kid

• 10 caramel chews / 1 kid

• 20 caramel chews / 1 kid

• None of the above

Is the graph proportional or non proportional?

• Yes

• No

What makes a graph proportional?

• Straight line
• The line goes through the origin
• Curvy line
• Straight line and the line goes through the origin

Which graph shows a proportional relationship?

• A
• B
• C
• D

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

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