Solve Problems Involving Proportional Relationships

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

What is the constant of proportionality?

• k = 3

• k = 1/3

• k = 3x

• k = 1/3x

Write an equation for the relationship between x and y. Use format y = kx.

Write the equation of the proportional relationship using 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

Select all graphs that represent proportional relationships.

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