Proportional Relationships Word Problems

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.

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

Does the table represent a proportional relationship?

• yes

• no

Does the table represent a proportional relationship?

• yes

• no

Does the graph represent a proportional relationship?

• yes

• no

Which equation represents a proportional relationship?

• y = x + 3

• y = x - 9

• y = 7x

• y = 4x + 1