Representations of Proportional and Non-Proportional Relationships

Select all equations that represent a proportional relationship.

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Select all equations that represent proportional relationships.

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What is the constant of proportionality? Use the format k = 2.

What is the constant of proportionality? Use the format k = 4.

Write the equation of the graph. Use the format y = kx.

Is the graph proportional?

• Yes

• No

Newtown middle school spends 11 dollars on every yearbook it buys. Is the amount of money NMS spends on yearbooks proportional to the total number of yearbooks NMS buys?

• Yes

• No

What is the constant of proportionality?

• k = 3

• k = 1/3

• k = 3x

• k = 1/3x

Match the following

• y = mx + b

• Equation for a proportional relationship

• k= y/x

• constant of proportionality

• relationship that is constant

• proportional graphs have to go through

• origin

• Equation for a non-proportional relationship

• y = kx

• Proportional Relationship

Which type of relationship does this relationship represent?

• graphical

• non-proportional relationship

• linear

• proportional relationship