Proportional Relationships

Write an equation for this relationship.

• y=1/5x
• y=1/2x
• y=2x
• y=5x

Which line shows a proportional relationship between x and y?

• Line L
• Line M

What is the unit rate in this proportional relationship?

• 60 miles/1 hour
• 120 miles/ 2 hours
• 1 mile/ 1 hour

Which graph is non-proportional?

• A
• B
• C
• D

The cost of 4 pounds of grapes is $24.36. What is the constant of proportionality that relates cost in dollars, y, to the number of pounds of grapes, x?

• 6.09
• 20.36
• 8.12
• 28.36

Select all graphs that represent proportional relationships.

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Select all graphs that represent a proportional relationship.

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

Select all equations that represent proportional relationships.

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