Proportional Relationships from a Graph

Write the equation of the proportional relationship using the format y = kx.

Is the graph proportional?

• Yes

• No

Select all graphs that represent proportional relationships.

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Select all graphs that represent a proportional relationship.

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

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.

What is the unit rate/constant of proportionality?

• 80 miles in 1 hours

• 20 miles in 1 hours

• 40 miles in 1 hours

• 160 miles in 1 hours