Proportional and Nonproportional Relationships

Three friends are buying seashells at the gift shop on the beach. Melanie buys 2 seashells for​ $0.80. Rosi buys 5 seashells for​ $2.00. Carlos buys 4 seashells for​ $1.60. Which graph represents the situation?

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Tags

CCSS.6.RP.A.3B

Which of these graphs shows a relationship that is NOT​ proportional? Mark all that apply.

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CCSS.7.RP.A.2D

The graph shows the relationship between the distance a taxi travels and the cost of the taxi ride. Is the relationship​ proportional? Explain. What is true about the graph?

• The relationship is not proportional because the graph does not pass through the origin.

• The relationship is not proportional because the graph is not a straight line.

• The relationship is proportional because the cost increases as the distance increases.

• The relationship is proportional because the graph is a straight line.

Tags

CCSS.7.RP.A.2D

Does the graph show a proportional relationship between x and​ y?

• No, because the graph does not pass through the origin.

• Yes, because the graph passes through the origin.

• ​Yes, because the graph is a straight line.

• No, because the graph is not a straight line.

Tags

CCSS.7.RP.A.2D

You bike 11.2 miles in 1.4 hours at a steady rate. What equation represents the proportional relationship between the x hours you bike and the distance y in miles that you​ travel?

• 9

• 8

• .125

• .135

Tags

CCSS.7.RP.A.2C

Write this rate as a unit rate: You run a 5k (3.1 miles) in 28 minutes.

The unit rate is minute miles.

• .54

• .11

• 9

• 10

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

An airplane on autopilot took 5 hours to travel​ 3,475 kilometers. What is the unit rate for kilometers per​ hour?

• 735

• 695

• 17,375

• .0014

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Is this table proportional?

• Yes
• No

Tags

CCSS.7.RP.A.2A

Is this table proportional?

• Yes
• No

Tags

CCSS.7.RP.A.2A

Does the table show a proportional relationship?

• Yes
• No

Tags

CCSS.7.RP.A.2A