Graph Proportion

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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• 
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Select the correct answer.

• This graph is proportional.

• This graph is nonproportional because it's not a straight line.

• This graph is nonproportional because it doesn't go through the origin.

Graphs that are proportional MUST be in a straight line.

• True

• False

Graphs that are proportional MUST go through the origin.

• True

• False

Select the correct answer.

• This graph is proportional.

• This graph is nonproportional because it's not a straight line.

• This graph is nonproportional because it doesn't go through the origin.

Select the correct answer.

• This graph is proportional.

• This graph is nonproportional because it's not a straight line.

• This graph is nonproportional because it doesn't go through the origin.

Anika is studying graphs in her math class. She wants to know what makes a graph proportional. Can you help her?

• If the graph is linear

• If the line on the graph goes through the origin

• If the graph has a curvy line

• If the graph is linear and the line goes through the origin

Lily, Arjun, and Luna are in a competition. They noticed that Taylor can write at a certain speed. Which statement matches Taylor's writing speed based on the graph?

• Taylor can write 6 words per minute

• Taylor can write 25 words per minute

• Taylor can write 50 words per minute

• Taylor can write 150 words per minute

Arjun, Jackson, and Elijah are studying the relationship between the number of hours they work at their part-time job and the money they earn. They notice that the graph of this relationship always goes through what point?

• (0,0)

• (10,0)

• (0, 10)

• none of these

Sophia, Evelyn, and Maya took a taxi ride in New York City. They noticed a pattern between the distance the taxi traveled and the cost of their ride. Is this relationship proportional? Explain.

• The relationship is not proportional because the cost does not start at zero when the distance is zero.

• The relationship is proportional because the cost of the ride increases in a straight line as the distance increases.

• The relationship is not proportional because the cost of the ride does not increase in a straight line as the distance increases.

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